18521494660

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{269}}^1\times {\mathrm{56437}}^1$

素因数の和:56776

約数の個数: 48

約数和(自身を含む): 39680429040

約数和(自身を除く): 21158934380

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 269, 305, 538, 610, 1076, 1220, 1345, 2690, 5380, 16409, 32818, 56437, 65636, 82045, 112874, 164090, 225748, 282185, 328180, 564370, 1128740, 3442657, 6885314, 13770628, 15181553, 17213285, 30363106, 34426570, 60726212, 68853140, 75907765, 151815530, 303631060, 926074733, 1852149466, 3704298932, 4630373665, 9260747330, 18521494660]

約数ペア:

[(1, 18521494660), (2, 9260747330), (4, 4630373665), (5, 3704298932), (10, 1852149466), (20, 926074733), (61, 303631060), (122, 151815530), (244, 75907765), (269, 68853140), (305, 60726212), (538, 34426570), (610, 30363106), (1076, 17213285), (1220, 15181553), (1345, 13770628), (2690, 6885314), (5380, 3442657), (16409, 1128740), (32818, 564370), (56437, 328180), (65636, 282185), (82045, 225748), (112874, 164090)]