247799980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{1103}}^1$

素因数の和:1398

約数の個数: 48

約数和(自身を含む): 534159360

約数和(自身を除く): 286359380

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 239, 470, 478, 940, 956, 1103, 1195, 2206, 2390, 4412, 4780, 5515, 11030, 11233, 22060, 22466, 44932, 51841, 56165, 103682, 112330, 207364, 224660, 259205, 263617, 518410, 527234, 1036820, 1054468, 1318085, 2636170, 5272340, 12389999, 24779998, 49559996, 61949995, 123899990, 247799980]

約数ペア:

[(1, 247799980), (2, 123899990), (4, 61949995), (5, 49559996), (10, 24779998), (20, 12389999), (47, 5272340), (94, 2636170), (188, 1318085), (235, 1054468), (239, 1036820), (470, 527234), (478, 518410), (940, 263617), (956, 259205), (1103, 224660), (1195, 207364), (2206, 112330), (2390, 103682), (4412, 56165), (4780, 51841), (5515, 44932), (11030, 22466), (11233, 22060)]