990021760

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:319

約数の個数: 256

約数和(自身を含む): 2961100800

約数和(自身を除く): 1971079040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 89, 91, 104, 112, 128, 130, 140, 160, 178, 182, 191, 208, 224, 260, 280, 320, 356, 364, 382, 416, 445, 448, 455, 520, 560, 623, 640, 712, 728, 764, 832, 890, 896, 910, 955, 1040, 1120, 1157, 1246, 1337, 1424, 1456, 1528, 1664, 1780, 1820, 1910, 2080, 2240, 2314, 2483, 2492, 2674, 2848, 2912, 3056, 3115, 3560, 3640, 3820, 4160, 4480, 4628, 4966, 4984, 5348, 5696, 5785, 5824, 6112, 6230, 6685, 7120, 7280, 7640, 8099, 8320, 9256, 9932, 9968, 10696, 11392, 11570, 11648, 12224, 12415, 12460, 13370, 14240, 14560, 15280, 16198, 16999, 17381, 18512, 19864, 19936, 21392, 23140, 24448, 24830, 24920, 26740, 28480, 29120, 30560, 32396, 33998, 34762, 37024, 39728, 39872, 40495, 42784, 46280, 49660, 49840, 53480, 56960, 58240, 61120, 64792, 67996, 69524, 74048, 79456, 79744, 80990, 84995, 85568, 86905, 92560, 99320, 99680, 106960, 118993, 122240, 129584, 135992, 139048, 148096, 158912, 161980, 169990, 171136, 173810, 185120, 198640, 199360, 213920, 220987, 237986, 259168, 271984, 278096, 317824, 323960, 339980, 347620, 370240, 397280, 398720, 427840, 441974, 475972, 518336, 543968, 556192, 594965, 647920, 679960, 695240, 740480, 794560, 855680, 883948, 951944, 1036672, 1087936, 1104935, 1112384, 1189930, 1295840, 1359920, 1390480, 1546909, 1589120, 1767896, 1903888, 2175872, 2209870, 2224768, 2379860, 2591680, 2719840, 2780960, 3093818, 3535792, 3807776, 4419740, 4759720, 5183360, 5439680, 5561920, 6187636, 7071584, 7615552, 7734545, 8839480, 9519440, 10879360, 11123840, 12375272, 14143168, 15231104, 15469090, 17678960, 19038880, 24750544, 28286336, 30938180, 35357920, 38077760, 49501088, 61876360, 70715840, 76155520, 99002176, 123752720, 141431680, 198004352, 247505440, 495010880, 990021760]

約数ペア:

[(1, 990021760), (2, 495010880), (4, 247505440), (5, 198004352), (7, 141431680), (8, 123752720), (10, 99002176), (13, 76155520), (14, 70715840), (16, 61876360), (20, 49501088), (26, 38077760), (28, 35357920), (32, 30938180), (35, 28286336), (40, 24750544), (52, 19038880), (56, 17678960), (64, 15469090), (65, 15231104), (70, 14143168), (80, 12375272), (89, 11123840), (91, 10879360), (104, 9519440), (112, 8839480), (128, 7734545), (130, 7615552), (140, 7071584), (160, 6187636), (178, 5561920), (182, 5439680), (191, 5183360), (208, 4759720), (224, 4419740), (260, 3807776), (280, 3535792), (320, 3093818), (356, 2780960), (364, 2719840), (382, 2591680), (416, 2379860), (445, 2224768), (448, 2209870), (455, 2175872), (520, 1903888), (560, 1767896), (623, 1589120), (640, 1546909), (712, 1390480), (728, 1359920), (764, 1295840), (832, 1189930), (890, 1112384), (896, 1104935), (910, 1087936), (955, 1036672), (1040, 951944), (1120, 883948), (1157, 855680), (1246, 794560), (1337, 740480), (1424, 695240), (1456, 679960), (1528, 647920), (1664, 594965), (1780, 556192), (1820, 543968), (1910, 518336), (2080, 475972), (2240, 441974), (2314, 427840), (2483, 398720), (2492, 397280), (2674, 370240), (2848, 347620), (2912, 339980), (3056, 323960), (3115, 317824), (3560, 278096), (3640, 271984), (3820, 259168), (4160, 237986), (4480, 220987), (4628, 213920), (4966, 199360), (4984, 198640), (5348, 185120), (5696, 173810), (5785, 171136), (5824, 169990), (6112, 161980), (6230, 158912), (6685, 148096), (7120, 139048), (7280, 135992), (7640, 129584), (8099, 122240), (8320, 118993), (9256, 106960), (9932, 99680), (9968, 99320), (10696, 92560), (11392, 86905), (11570, 85568), (11648, 84995), (12224, 80990), (12415, 79744), (12460, 79456), (13370, 74048), (14240, 69524), (14560, 67996), (15280, 64792), (16198, 61120), (16999, 58240), (17381, 56960), (18512, 53480), (19864, 49840), (19936, 49660), (21392, 46280), (23140, 42784), (24448, 40495), (24830, 39872), (24920, 39728), (26740, 37024), (28480, 34762), (29120, 33998), (30560, 32396)]