20975181312

素因数分解:

$2^9\times 3^1\times {\mathrm{31}}^1\times {\mathrm{440507}}^1$

素因数の和:440559

約数の個数: 80

約数和(自身を含む): 57681879552

約数和(自身を除く): 36706698240

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 64, 93, 96, 124, 128, 186, 192, 248, 256, 372, 384, 496, 512, 744, 768, 992, 1488, 1536, 1984, 2976, 3968, 5952, 7936, 11904, 15872, 23808, 47616, 440507, 881014, 1321521, 1762028, 2643042, 3524056, 5286084, 7048112, 10572168, 13655717, 14096224, 21144336, 27311434, 28192448, 40967151, 42288672, 54622868, 56384896, 81934302, 84577344, 109245736, 112769792, 163868604, 169154688, 218491472, 225539584, 327737208, 338309376, 436982944, 655474416, 676618752, 873965888, 1310948832, 1747931776, 2621897664, 3495863552, 5243795328, 6991727104, 10487590656, 20975181312]

約数ペア:

[(1, 20975181312), (2, 10487590656), (3, 6991727104), (4, 5243795328), (6, 3495863552), (8, 2621897664), (12, 1747931776), (16, 1310948832), (24, 873965888), (31, 676618752), (32, 655474416), (48, 436982944), (62, 338309376), (64, 327737208), (93, 225539584), (96, 218491472), (124, 169154688), (128, 163868604), (186, 112769792), (192, 109245736), (248, 84577344), (256, 81934302), (372, 56384896), (384, 54622868), (496, 42288672), (512, 40967151), (744, 28192448), (768, 27311434), (992, 21144336), (1488, 14096224), (1536, 13655717), (1984, 10572168), (2976, 7048112), (3968, 5286084), (5952, 3524056), (7936, 2643042), (11904, 1762028), (15872, 1321521), (23808, 881014), (47616, 440507)]