40910720

素因数分解:

$2^7\times 5^1\times {\mathrm{97}}^1\times {\mathrm{659}}^1$

素因数の和:775

約数の個数: 64

約数和(自身を含む): 98960400

約数和(自身を除く): 58049680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 320, 388, 485, 640, 659, 776, 970, 1318, 1552, 1940, 2636, 3104, 3295, 3880, 5272, 6208, 6590, 7760, 10544, 12416, 13180, 15520, 21088, 26360, 31040, 42176, 52720, 62080, 63923, 84352, 105440, 127846, 210880, 255692, 319615, 421760, 511384, 639230, 1022768, 1278460, 2045536, 2556920, 4091072, 5113840, 8182144, 10227680, 20455360, 40910720]

約数ペア:

[(1, 40910720), (2, 20455360), (4, 10227680), (5, 8182144), (8, 5113840), (10, 4091072), (16, 2556920), (20, 2045536), (32, 1278460), (40, 1022768), (64, 639230), (80, 511384), (97, 421760), (128, 319615), (160, 255692), (194, 210880), (320, 127846), (388, 105440), (485, 84352), (640, 63923), (659, 62080), (776, 52720), (970, 42176), (1318, 31040), (1552, 26360), (1940, 21088), (2636, 15520), (3104, 13180), (3295, 12416), (3880, 10544), (5272, 7760), (6208, 6590)]