28444910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 59621184

約数和(自身を除く): 31176274

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 61, 65, 85, 122, 130, 170, 211, 221, 305, 422, 442, 610, 793, 1037, 1055, 1105, 1586, 2074, 2110, 2210, 2743, 3587, 3965, 5185, 5486, 7174, 7930, 10370, 12871, 13481, 13715, 17935, 25742, 26962, 27430, 35870, 46631, 64355, 67405, 93262, 128710, 134810, 167323, 218807, 233155, 334646, 437614, 466310, 836615, 1094035, 1673230, 2188070, 2844491, 5688982, 14222455, 28444910]

約数ペア:

[(1, 28444910), (2, 14222455), (5, 5688982), (10, 2844491), (13, 2188070), (17, 1673230), (26, 1094035), (34, 836615), (61, 466310), (65, 437614), (85, 334646), (122, 233155), (130, 218807), (170, 167323), (211, 134810), (221, 128710), (305, 93262), (422, 67405), (442, 64355), (610, 46631), (793, 35870), (1037, 27430), (1055, 26962), (1105, 25742), (1586, 17935), (2074, 13715), (2110, 13481), (2210, 12871), (2743, 10370), (3587, 7930), (3965, 7174), (5185, 5486)]