30993440

素因数分解:

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

素因数の和:2109

約数の個数: 48

約数和(自身を含む): 74013912

約数和(自身を除く): 43020472

約数列:

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

約数ペア:

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