15854540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{211}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 38269392

約数和(自身を除く): 22414852

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 211, 221, 260, 289, 340, 422, 442, 578, 844, 884, 1055, 1105, 1156, 1445, 2110, 2210, 2743, 2890, 3587, 3757, 4220, 4420, 5486, 5780, 7174, 7514, 10972, 13715, 14348, 15028, 17935, 18785, 27430, 35870, 37570, 46631, 54860, 60979, 71740, 75140, 93262, 121958, 186524, 233155, 243916, 304895, 466310, 609790, 792727, 932620, 1219580, 1585454, 3170908, 3963635, 7927270, 15854540]

約数ペア:

[(1, 15854540), (2, 7927270), (4, 3963635), (5, 3170908), (10, 1585454), (13, 1219580), (17, 932620), (20, 792727), (26, 609790), (34, 466310), (52, 304895), (65, 243916), (68, 233155), (85, 186524), (130, 121958), (170, 93262), (211, 75140), (221, 71740), (260, 60979), (289, 54860), (340, 46631), (422, 37570), (442, 35870), (578, 27430), (844, 18785), (884, 17935), (1055, 15028), (1105, 14348), (1156, 13715), (1445, 10972), (2110, 7514), (2210, 7174), (2743, 5780), (2890, 5486), (3587, 4420), (3757, 4220)]