61538620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21517}}^1$

素因数の和:21550

約数の個数: 48

約数和(自身を含む): 151831008

約数和(自身を除く): 90292388

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 21517, 43034, 86068, 107585, 215170, 236687, 279721, 430340, 473374, 559442, 946748, 1118884, 1183435, 1398605, 2366870, 2797210, 3076931, 4733740, 5594420, 6153862, 12307724, 15384655, 30769310, 61538620]

約数ペア:

[(1, 61538620), (2, 30769310), (4, 15384655), (5, 12307724), (10, 6153862), (11, 5594420), (13, 4733740), (20, 3076931), (22, 2797210), (26, 2366870), (44, 1398605), (52, 1183435), (55, 1118884), (65, 946748), (110, 559442), (130, 473374), (143, 430340), (220, 279721), (260, 236687), (286, 215170), (572, 107585), (715, 86068), (1430, 43034), (2860, 21517)]