21130830080

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{532531}}^1$

素因数の和:532583

約数の個数: 72

約数和(自身を含む): 52247779584

約数和(自身を除く): 31116949504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 532531, 1065062, 2130124, 2662655, 4260248, 5325310, 8520496, 10650620, 16508461, 17040992, 21301240, 33016922, 34081984, 42602480, 66033844, 68163968, 82542305, 85204960, 132067688, 136327936, 165084610, 170409920, 264135376, 330169220, 340819840, 528270752, 660338440, 681639680, 1056541504, 1320676880, 2113083008, 2641353760, 4226166016, 5282707520, 10565415040, 21130830080]

約数ペア:

[(1, 21130830080), (2, 10565415040), (4, 5282707520), (5, 4226166016), (8, 2641353760), (10, 2113083008), (16, 1320676880), (20, 1056541504), (31, 681639680), (32, 660338440), (40, 528270752), (62, 340819840), (64, 330169220), (80, 264135376), (124, 170409920), (128, 165084610), (155, 136327936), (160, 132067688), (248, 85204960), (256, 82542305), (310, 68163968), (320, 66033844), (496, 42602480), (620, 34081984), (640, 33016922), (992, 21301240), (1240, 17040992), (1280, 16508461), (1984, 10650620), (2480, 8520496), (3968, 5325310), (4960, 4260248), (7936, 2662655), (9920, 2130124), (19840, 1065062), (39680, 532531)]