15721760

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1013}}^1$

素因数の和:1125

約数の個数: 48

約数和(自身を含む): 37562616

約数和(自身を除く): 21840856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1013, 1552, 1940, 2026, 3104, 3880, 4052, 5065, 7760, 8104, 10130, 15520, 16208, 20260, 32416, 40520, 81040, 98261, 162080, 196522, 393044, 491305, 786088, 982610, 1572176, 1965220, 3144352, 3930440, 7860880, 15721760]

約数ペア:

[(1, 15721760), (2, 7860880), (4, 3930440), (5, 3144352), (8, 1965220), (10, 1572176), (16, 982610), (20, 786088), (32, 491305), (40, 393044), (80, 196522), (97, 162080), (160, 98261), (194, 81040), (388, 40520), (485, 32416), (776, 20260), (970, 16208), (1013, 15520), (1552, 10130), (1940, 8104), (2026, 7760), (3104, 5065), (3880, 4052)]