78996800

素因数分解:

$2^6\times 5^2\times {\mathrm{97}}^1\times {\mathrm{509}}^1$

素因数の和:628

約数の個数: 84

約数和(自身を含む): 196771260

約数和(自身を除く): 117774460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 97, 100, 160, 194, 200, 320, 388, 400, 485, 509, 776, 800, 970, 1018, 1552, 1600, 1940, 2036, 2425, 2545, 3104, 3880, 4072, 4850, 5090, 6208, 7760, 8144, 9700, 10180, 12725, 15520, 16288, 19400, 20360, 25450, 31040, 32576, 38800, 40720, 49373, 50900, 77600, 81440, 98746, 101800, 155200, 162880, 197492, 203600, 246865, 394984, 407200, 493730, 789968, 814400, 987460, 1234325, 1579936, 1974920, 2468650, 3159872, 3949840, 4937300, 7899680, 9874600, 15799360, 19749200, 39498400, 78996800]

約数ペア:

[(1, 78996800), (2, 39498400), (4, 19749200), (5, 15799360), (8, 9874600), (10, 7899680), (16, 4937300), (20, 3949840), (25, 3159872), (32, 2468650), (40, 1974920), (50, 1579936), (64, 1234325), (80, 987460), (97, 814400), (100, 789968), (160, 493730), (194, 407200), (200, 394984), (320, 246865), (388, 203600), (400, 197492), (485, 162880), (509, 155200), (776, 101800), (800, 98746), (970, 81440), (1018, 77600), (1552, 50900), (1600, 49373), (1940, 40720), (2036, 38800), (2425, 32576), (2545, 31040), (3104, 25450), (3880, 20360), (4072, 19400), (4850, 16288), (5090, 15520), (6208, 12725), (7760, 10180), (8144, 9700)]