2080395760

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{634267}}^1$

素因数の和:634321

約数の個数: 40

約数和(自身を含む): 4954901616

約数和(自身を除く): 2874505856

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 634267, 1268534, 2537068, 3171335, 5074136, 6342670, 10148272, 12685340, 25370680, 26004947, 50741360, 52009894, 104019788, 130024735, 208039576, 260049470, 416079152, 520098940, 1040197880, 2080395760]

約数ペア:

[(1, 2080395760), (2, 1040197880), (4, 520098940), (5, 416079152), (8, 260049470), (10, 208039576), (16, 130024735), (20, 104019788), (40, 52009894), (41, 50741360), (80, 26004947), (82, 25370680), (164, 12685340), (205, 10148272), (328, 6342670), (410, 5074136), (656, 3171335), (820, 2537068), (1640, 1268534), (3280, 634267)]