20850610

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 43338240

約数和(自身を除く): 22487630

約数列:

[1, 2, 5, 10, 11, 22, 37, 47, 55, 74, 94, 109, 110, 185, 218, 235, 370, 407, 470, 517, 545, 814, 1034, 1090, 1199, 1739, 2035, 2398, 2585, 3478, 4033, 4070, 5123, 5170, 5995, 8066, 8695, 10246, 11990, 17390, 19129, 20165, 25615, 38258, 40330, 44363, 51230, 56353, 88726, 95645, 112706, 189551, 191290, 221815, 281765, 379102, 443630, 563530, 947755, 1895510, 2085061, 4170122, 10425305, 20850610]

約数ペア:

[(1, 20850610), (2, 10425305), (5, 4170122), (10, 2085061), (11, 1895510), (22, 947755), (37, 563530), (47, 443630), (55, 379102), (74, 281765), (94, 221815), (109, 191290), (110, 189551), (185, 112706), (218, 95645), (235, 88726), (370, 56353), (407, 51230), (470, 44363), (517, 40330), (545, 38258), (814, 25615), (1034, 20165), (1090, 19129), (1199, 17390), (1739, 11990), (2035, 10246), (2398, 8695), (2585, 8066), (3478, 5995), (4033, 5170), (4070, 5123)]