8477980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 21316176

約数和(自身を除く): 12838196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 49, 70, 82, 98, 140, 164, 196, 205, 211, 245, 287, 410, 422, 490, 574, 820, 844, 980, 1055, 1148, 1435, 1477, 2009, 2110, 2870, 2954, 4018, 4220, 5740, 5908, 7385, 8036, 8651, 10045, 10339, 14770, 17302, 20090, 20678, 29540, 34604, 40180, 41356, 43255, 51695, 60557, 86510, 103390, 121114, 173020, 206780, 242228, 302785, 423899, 605570, 847798, 1211140, 1695596, 2119495, 4238990, 8477980]

約数ペア:

[(1, 8477980), (2, 4238990), (4, 2119495), (5, 1695596), (7, 1211140), (10, 847798), (14, 605570), (20, 423899), (28, 302785), (35, 242228), (41, 206780), (49, 173020), (70, 121114), (82, 103390), (98, 86510), (140, 60557), (164, 51695), (196, 43255), (205, 41356), (211, 40180), (245, 34604), (287, 29540), (410, 20678), (422, 20090), (490, 17302), (574, 14770), (820, 10339), (844, 10045), (980, 8651), (1055, 8036), (1148, 7385), (1435, 5908), (1477, 5740), (2009, 4220), (2110, 4018), (2870, 2954)]