221514400

素因数分解:

$2^5\times 5^2\times {\mathrm{409}}^1\times {\mathrm{677}}^1$

素因数の和:1106

約数の個数: 72

約数和(自身を含む): 542894940

約数和(自身を除く): 321380540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 409, 677, 800, 818, 1354, 1636, 2045, 2708, 3272, 3385, 4090, 5416, 6544, 6770, 8180, 10225, 10832, 13088, 13540, 16360, 16925, 20450, 21664, 27080, 32720, 33850, 40900, 54160, 65440, 67700, 81800, 108320, 135400, 163600, 270800, 276893, 327200, 541600, 553786, 1107572, 1384465, 2215144, 2768930, 4430288, 5537860, 6922325, 8860576, 11075720, 13844650, 22151440, 27689300, 44302880, 55378600, 110757200, 221514400]

約数ペア:

[(1, 221514400), (2, 110757200), (4, 55378600), (5, 44302880), (8, 27689300), (10, 22151440), (16, 13844650), (20, 11075720), (25, 8860576), (32, 6922325), (40, 5537860), (50, 4430288), (80, 2768930), (100, 2215144), (160, 1384465), (200, 1107572), (400, 553786), (409, 541600), (677, 327200), (800, 276893), (818, 270800), (1354, 163600), (1636, 135400), (2045, 108320), (2708, 81800), (3272, 67700), (3385, 65440), (4090, 54160), (5416, 40900), (6544, 33850), (6770, 32720), (8180, 27080), (10225, 21664), (10832, 20450), (13088, 16925), (13540, 16360)]