18419910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:293

約数の個数: 64

約数和(自身を含む): 45999360

約数和(自身を除く): 27579450

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 109, 129, 131, 215, 218, 258, 262, 327, 393, 430, 545, 645, 654, 655, 786, 1090, 1290, 1310, 1635, 1965, 3270, 3930, 4687, 5633, 9374, 11266, 14061, 14279, 16899, 23435, 28122, 28165, 28558, 33798, 42837, 46870, 56330, 70305, 71395, 84495, 85674, 140610, 142790, 168990, 214185, 428370, 613997, 1227994, 1841991, 3069985, 3683982, 6139970, 9209955, 18419910]

約数ペア:

[(1, 18419910), (2, 9209955), (3, 6139970), (5, 3683982), (6, 3069985), (10, 1841991), (15, 1227994), (30, 613997), (43, 428370), (86, 214185), (109, 168990), (129, 142790), (131, 140610), (215, 85674), (218, 84495), (258, 71395), (262, 70305), (327, 56330), (393, 46870), (430, 42837), (545, 33798), (645, 28558), (654, 28165), (655, 28122), (786, 23435), (1090, 16899), (1290, 14279), (1310, 14061), (1635, 11266), (1965, 9374), (3270, 5633), (3930, 4687)]