61487140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{21499}}^1$

素因数の和:21532

約数の個数: 48

約数和(自身を含む): 151704000

約数和(自身を除く): 90216860

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, 21499, 42998, 85996, 107495, 214990, 236489, 279487, 429980, 472978, 558974, 945956, 1117948, 1182445, 1397435, 2364890, 2794870, 3074357, 4729780, 5589740, 6148714, 12297428, 15371785, 30743570, 61487140]

約数ペア:

[(1, 61487140), (2, 30743570), (4, 15371785), (5, 12297428), (10, 6148714), (11, 5589740), (13, 4729780), (20, 3074357), (22, 2794870), (26, 2364890), (44, 1397435), (52, 1182445), (55, 1117948), (65, 945956), (110, 558974), (130, 472978), (143, 429980), (220, 279487), (260, 236489), (286, 214990), (572, 107495), (715, 85996), (1430, 42998), (2860, 21499)]