4257220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{523}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 10035648

約数和(自身を除く): 5778428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 523, 740, 814, 1046, 1628, 2035, 2092, 2615, 4070, 5230, 5753, 8140, 10460, 11506, 19351, 23012, 28765, 38702, 57530, 77404, 96755, 115060, 193510, 212861, 387020, 425722, 851444, 1064305, 2128610, 4257220]

約数ペア:

[(1, 4257220), (2, 2128610), (4, 1064305), (5, 851444), (10, 425722), (11, 387020), (20, 212861), (22, 193510), (37, 115060), (44, 96755), (55, 77404), (74, 57530), (110, 38702), (148, 28765), (185, 23012), (220, 19351), (370, 11506), (407, 10460), (523, 8140), (740, 5753), (814, 5230), (1046, 4070), (1628, 2615), (2035, 2092)]