42136520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25693}}^1$

素因数の和:25745

約数の個数: 32

約数和(自身を含む): 97123320

約数和(自身を除く): 54986800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 25693, 51386, 102772, 128465, 205544, 256930, 513860, 1027720, 1053413, 2106826, 4213652, 5267065, 8427304, 10534130, 21068260, 42136520]

約数ペア:

[(1, 42136520), (2, 21068260), (4, 10534130), (5, 8427304), (8, 5267065), (10, 4213652), (20, 2106826), (40, 1053413), (41, 1027720), (82, 513860), (164, 256930), (205, 205544), (328, 128465), (410, 102772), (820, 51386), (1640, 25693)]