61986880

素因数分解:

$2^6\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1997}}^1$

素因数の和:2111

約数の個数: 56

約数和(自身を含む): 149202648

約数和(自身を除く): 87215768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 160, 194, 320, 388, 485, 776, 970, 1552, 1940, 1997, 3104, 3880, 3994, 6208, 7760, 7988, 9985, 15520, 15976, 19970, 31040, 31952, 39940, 63904, 79880, 127808, 159760, 193709, 319520, 387418, 639040, 774836, 968545, 1549672, 1937090, 3099344, 3874180, 6198688, 7748360, 12397376, 15496720, 30993440, 61986880]

約数ペア:

[(1, 61986880), (2, 30993440), (4, 15496720), (5, 12397376), (8, 7748360), (10, 6198688), (16, 3874180), (20, 3099344), (32, 1937090), (40, 1549672), (64, 968545), (80, 774836), (97, 639040), (160, 387418), (194, 319520), (320, 193709), (388, 159760), (485, 127808), (776, 79880), (970, 63904), (1552, 39940), (1940, 31952), (1997, 31040), (3104, 19970), (3880, 15976), (3994, 15520), (6208, 9985), (7760, 7988)]