690651520

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:325

約数の個数: 256

約数和(自身を含む): 1989489600

約数和(自身を除く): 1298838080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 19, 20, 26, 32, 34, 38, 40, 52, 64, 65, 68, 76, 80, 85, 95, 104, 128, 130, 136, 152, 160, 170, 190, 208, 221, 247, 257, 260, 272, 304, 320, 323, 340, 380, 416, 442, 494, 514, 520, 544, 608, 640, 646, 680, 760, 832, 884, 988, 1028, 1040, 1088, 1105, 1216, 1235, 1285, 1292, 1360, 1520, 1615, 1664, 1768, 1976, 2056, 2080, 2176, 2210, 2432, 2470, 2570, 2584, 2720, 3040, 3230, 3341, 3536, 3952, 4112, 4160, 4199, 4369, 4420, 4883, 4940, 5140, 5168, 5440, 6080, 6460, 6682, 7072, 7904, 8224, 8320, 8398, 8738, 8840, 9766, 9880, 10280, 10336, 10880, 12160, 12920, 13364, 14144, 15808, 16448, 16705, 16796, 17476, 17680, 19532, 19760, 20560, 20672, 20995, 21845, 24415, 25840, 26728, 28288, 31616, 32896, 33410, 33592, 34952, 35360, 39064, 39520, 41120, 41344, 41990, 43690, 48830, 51680, 53456, 56797, 63479, 66820, 67184, 69904, 70720, 78128, 79040, 82240, 83011, 83980, 87380, 97660, 103360, 106912, 113594, 126958, 133640, 134368, 139808, 141440, 156256, 158080, 164480, 166022, 167960, 174760, 195320, 206720, 213824, 227188, 253916, 267280, 268736, 279616, 283985, 312512, 317395, 332044, 335920, 349520, 390640, 415055, 427648, 454376, 507832, 534560, 537472, 559232, 567970, 625024, 634790, 664088, 671840, 699040, 781280, 830110, 908752, 1015664, 1069120, 1079143, 1135940, 1269580, 1328176, 1343680, 1398080, 1562560, 1660220, 1817504, 2031328, 2138240, 2158286, 2271880, 2539160, 2656352, 2687360, 2796160, 3125120, 3320440, 3635008, 4062656, 4316572, 4543760, 5078320, 5312704, 5395715, 6640880, 7270016, 8125312, 8633144, 9087520, 10156640, 10625408, 10791430, 13281760, 17266288, 18175040, 20313280, 21582860, 26563520, 34532576, 36350080, 40626560, 43165720, 53127040, 69065152, 86331440, 138130304, 172662880, 345325760, 690651520]

約数ペア:

[(1, 690651520), (2, 345325760), (4, 172662880), (5, 138130304), (8, 86331440), (10, 69065152), (13, 53127040), (16, 43165720), (17, 40626560), (19, 36350080), (20, 34532576), (26, 26563520), (32, 21582860), (34, 20313280), (38, 18175040), (40, 17266288), (52, 13281760), (64, 10791430), (65, 10625408), (68, 10156640), (76, 9087520), (80, 8633144), (85, 8125312), (95, 7270016), (104, 6640880), (128, 5395715), (130, 5312704), (136, 5078320), (152, 4543760), (160, 4316572), (170, 4062656), (190, 3635008), (208, 3320440), (221, 3125120), (247, 2796160), (257, 2687360), (260, 2656352), (272, 2539160), (304, 2271880), (320, 2158286), (323, 2138240), (340, 2031328), (380, 1817504), (416, 1660220), (442, 1562560), (494, 1398080), (514, 1343680), (520, 1328176), (544, 1269580), (608, 1135940), (640, 1079143), (646, 1069120), (680, 1015664), (760, 908752), (832, 830110), (884, 781280), (988, 699040), (1028, 671840), (1040, 664088), (1088, 634790), (1105, 625024), (1216, 567970), (1235, 559232), (1285, 537472), (1292, 534560), (1360, 507832), (1520, 454376), (1615, 427648), (1664, 415055), (1768, 390640), (1976, 349520), (2056, 335920), (2080, 332044), (2176, 317395), (2210, 312512), (2432, 283985), (2470, 279616), (2570, 268736), (2584, 267280), (2720, 253916), (3040, 227188), (3230, 213824), (3341, 206720), (3536, 195320), (3952, 174760), (4112, 167960), (4160, 166022), (4199, 164480), (4369, 158080), (4420, 156256), (4883, 141440), (4940, 139808), (5140, 134368), (5168, 133640), (5440, 126958), (6080, 113594), (6460, 106912), (6682, 103360), (7072, 97660), (7904, 87380), (8224, 83980), (8320, 83011), (8398, 82240), (8738, 79040), (8840, 78128), (9766, 70720), (9880, 69904), (10280, 67184), (10336, 66820), (10880, 63479), (12160, 56797), (12920, 53456), (13364, 51680), (14144, 48830), (15808, 43690), (16448, 41990), (16705, 41344), (16796, 41120), (17476, 39520), (17680, 39064), (19532, 35360), (19760, 34952), (20560, 33592), (20672, 33410), (20995, 32896), (21845, 31616), (24415, 28288), (25840, 26728)]