51688120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1487}}^1$

素因数の和:1588

約数の個数: 64

約数和(自身を含む): 128563200

約数和(自身を除く): 76875080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 79, 88, 110, 158, 220, 316, 395, 440, 632, 790, 869, 1487, 1580, 1738, 2974, 3160, 3476, 4345, 5948, 6952, 7435, 8690, 11896, 14870, 16357, 17380, 29740, 32714, 34760, 59480, 65428, 81785, 117473, 130856, 163570, 234946, 327140, 469892, 587365, 654280, 939784, 1174730, 1292203, 2349460, 2584406, 4698920, 5168812, 6461015, 10337624, 12922030, 25844060, 51688120]

約数ペア:

[(1, 51688120), (2, 25844060), (4, 12922030), (5, 10337624), (8, 6461015), (10, 5168812), (11, 4698920), (20, 2584406), (22, 2349460), (40, 1292203), (44, 1174730), (55, 939784), (79, 654280), (88, 587365), (110, 469892), (158, 327140), (220, 234946), (316, 163570), (395, 130856), (440, 117473), (632, 81785), (790, 65428), (869, 59480), (1487, 34760), (1580, 32714), (1738, 29740), (2974, 17380), (3160, 16357), (3476, 14870), (4345, 11896), (5948, 8690), (6952, 7435)]