71316520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{1487}}^1$

素因数の和:1618

約数の個数: 64

約数和(自身を含む): 176774400

約数和(自身を除く): 105457880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 109, 110, 218, 220, 436, 440, 545, 872, 1090, 1199, 1487, 2180, 2398, 2974, 4360, 4796, 5948, 5995, 7435, 9592, 11896, 11990, 14870, 16357, 23980, 29740, 32714, 47960, 59480, 65428, 81785, 130856, 162083, 163570, 324166, 327140, 648332, 654280, 810415, 1296664, 1620830, 1782913, 3241660, 3565826, 6483320, 7131652, 8914565, 14263304, 17829130, 35658260, 71316520]

約数ペア:

[(1, 71316520), (2, 35658260), (4, 17829130), (5, 14263304), (8, 8914565), (10, 7131652), (11, 6483320), (20, 3565826), (22, 3241660), (40, 1782913), (44, 1620830), (55, 1296664), (88, 810415), (109, 654280), (110, 648332), (218, 327140), (220, 324166), (436, 163570), (440, 162083), (545, 130856), (872, 81785), (1090, 65428), (1199, 59480), (1487, 47960), (2180, 32714), (2398, 29740), (2974, 23980), (4360, 16357), (4796, 14870), (5948, 11990), (5995, 11896), (7435, 9592)]