654118970

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1\times {\mathrm{1279}}^1$

素因数の和:1742

約数の個数: 32

約数和(自身を含む): 1188864000

約数和(自身を除く): 534745030

約数列:

[1, 2, 5, 10, 199, 257, 398, 514, 995, 1279, 1285, 1990, 2558, 2570, 6395, 12790, 51143, 102286, 254521, 255715, 328703, 509042, 511430, 657406, 1272605, 1643515, 2545210, 3287030, 65411897, 130823794, 327059485, 654118970]

約数ペア:

[(1, 654118970), (2, 327059485), (5, 130823794), (10, 65411897), (199, 3287030), (257, 2545210), (398, 1643515), (514, 1272605), (995, 657406), (1279, 511430), (1285, 509042), (1990, 328703), (2558, 255715), (2570, 254521), (6395, 102286), (12790, 51143)]