81891800

素因数分解:

$2^3\times 5^2\times {\mathrm{241}}^1\times {\mathrm{1699}}^1$

素因数の和:1956

約数の個数: 48

約数和(自身を含む): 191301000

約数和(自身を除く): 109409200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 241, 482, 964, 1205, 1699, 1928, 2410, 3398, 4820, 6025, 6796, 8495, 9640, 12050, 13592, 16990, 24100, 33980, 42475, 48200, 67960, 84950, 169900, 339800, 409459, 818918, 1637836, 2047295, 3275672, 4094590, 8189180, 10236475, 16378360, 20472950, 40945900, 81891800]

約数ペア:

[(1, 81891800), (2, 40945900), (4, 20472950), (5, 16378360), (8, 10236475), (10, 8189180), (20, 4094590), (25, 3275672), (40, 2047295), (50, 1637836), (100, 818918), (200, 409459), (241, 339800), (482, 169900), (964, 84950), (1205, 67960), (1699, 48200), (1928, 42475), (2410, 33980), (3398, 24100), (4820, 16990), (6025, 13592), (6796, 12050), (8495, 9640)]