1806678640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:395

約数の個数: 160

約数和(自身を含む): 4640328000

約数和(自身を除く): 2833649360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 89, 104, 130, 131, 149, 178, 208, 260, 262, 298, 356, 445, 520, 524, 596, 655, 712, 745, 890, 1040, 1048, 1157, 1192, 1310, 1424, 1490, 1703, 1780, 1937, 2096, 2314, 2384, 2620, 2980, 3406, 3560, 3874, 4628, 5240, 5785, 5960, 6812, 7120, 7748, 8515, 9256, 9685, 10480, 11570, 11659, 11920, 13261, 13624, 15496, 17030, 18512, 19370, 19519, 23140, 23318, 26522, 27248, 30992, 34060, 38740, 39038, 46280, 46636, 53044, 58295, 66305, 68120, 77480, 78076, 92560, 93272, 97595, 106088, 116590, 132610, 136240, 151567, 154960, 156152, 172393, 186544, 195190, 212176, 233180, 253747, 265220, 303134, 312304, 344786, 390380, 466360, 507494, 530440, 606268, 689572, 757835, 780760, 861965, 932720, 1014988, 1060880, 1212536, 1268735, 1379144, 1515670, 1561520, 1723930, 1737191, 2029976, 2425072, 2537470, 2758288, 3031340, 3447860, 3474382, 4059952, 5074940, 6062680, 6895720, 6948764, 8685955, 10149880, 12125360, 13791440, 13897528, 17371910, 20299760, 22583483, 27795056, 34743820, 45166966, 69487640, 90333932, 112917415, 138975280, 180667864, 225834830, 361335728, 451669660, 903339320, 1806678640]

約数ペア:

[(1, 1806678640), (2, 903339320), (4, 451669660), (5, 361335728), (8, 225834830), (10, 180667864), (13, 138975280), (16, 112917415), (20, 90333932), (26, 69487640), (40, 45166966), (52, 34743820), (65, 27795056), (80, 22583483), (89, 20299760), (104, 17371910), (130, 13897528), (131, 13791440), (149, 12125360), (178, 10149880), (208, 8685955), (260, 6948764), (262, 6895720), (298, 6062680), (356, 5074940), (445, 4059952), (520, 3474382), (524, 3447860), (596, 3031340), (655, 2758288), (712, 2537470), (745, 2425072), (890, 2029976), (1040, 1737191), (1048, 1723930), (1157, 1561520), (1192, 1515670), (1310, 1379144), (1424, 1268735), (1490, 1212536), (1703, 1060880), (1780, 1014988), (1937, 932720), (2096, 861965), (2314, 780760), (2384, 757835), (2620, 689572), (2980, 606268), (3406, 530440), (3560, 507494), (3874, 466360), (4628, 390380), (5240, 344786), (5785, 312304), (5960, 303134), (6812, 265220), (7120, 253747), (7748, 233180), (8515, 212176), (9256, 195190), (9685, 186544), (10480, 172393), (11570, 156152), (11659, 154960), (11920, 151567), (13261, 136240), (13624, 132610), (15496, 116590), (17030, 106088), (18512, 97595), (19370, 93272), (19519, 92560), (23140, 78076), (23318, 77480), (26522, 68120), (27248, 66305), (30992, 58295), (34060, 53044), (38740, 46636), (39038, 46280)]