171877460

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1\times {\mathrm{421}}^1$

素因数の和:716

約数の個数: 48

約数和(自身を含む): 366886800

約数和(自身を除く): 195009340

約数列:

[1, 2, 4, 5, 10, 20, 137, 149, 274, 298, 421, 548, 596, 685, 745, 842, 1370, 1490, 1684, 2105, 2740, 2980, 4210, 8420, 20413, 40826, 57677, 62729, 81652, 102065, 115354, 125458, 204130, 230708, 250916, 288385, 313645, 408260, 576770, 627290, 1153540, 1254580, 8593873, 17187746, 34375492, 42969365, 85938730, 171877460]

約数ペア:

[(1, 171877460), (2, 85938730), (4, 42969365), (5, 34375492), (10, 17187746), (20, 8593873), (137, 1254580), (149, 1153540), (274, 627290), (298, 576770), (421, 408260), (548, 313645), (596, 288385), (685, 250916), (745, 230708), (842, 204130), (1370, 125458), (1490, 115354), (1684, 102065), (2105, 81652), (2740, 62729), (2980, 57677), (4210, 40826), (8420, 20413)]