81627140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:266

約数の個数: 96

約数和(自身を含む): 203884800

約数和(自身を除く): 122257660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 73, 98, 140, 146, 163, 196, 245, 292, 326, 343, 365, 490, 511, 652, 686, 730, 815, 980, 1022, 1141, 1372, 1460, 1630, 1715, 2044, 2282, 2555, 3260, 3430, 3577, 4564, 5110, 5705, 6860, 7154, 7987, 10220, 11410, 11899, 14308, 15974, 17885, 22820, 23798, 25039, 31948, 35770, 39935, 47596, 50078, 55909, 59495, 71540, 79870, 83293, 100156, 111818, 118990, 125195, 159740, 166586, 223636, 237980, 250390, 279545, 333172, 416465, 500780, 559090, 583051, 832930, 1118180, 1166102, 1665860, 2332204, 2915255, 4081357, 5830510, 8162714, 11661020, 16325428, 20406785, 40813570, 81627140]

約数ペア:

[(1, 81627140), (2, 40813570), (4, 20406785), (5, 16325428), (7, 11661020), (10, 8162714), (14, 5830510), (20, 4081357), (28, 2915255), (35, 2332204), (49, 1665860), (70, 1166102), (73, 1118180), (98, 832930), (140, 583051), (146, 559090), (163, 500780), (196, 416465), (245, 333172), (292, 279545), (326, 250390), (343, 237980), (365, 223636), (490, 166586), (511, 159740), (652, 125195), (686, 118990), (730, 111818), (815, 100156), (980, 83293), (1022, 79870), (1141, 71540), (1372, 59495), (1460, 55909), (1630, 50078), (1715, 47596), (2044, 39935), (2282, 35770), (2555, 31948), (3260, 25039), (3430, 23798), (3577, 22820), (4564, 17885), (5110, 15974), (5705, 14308), (6860, 11899), (7154, 11410), (7987, 10220)]