31497730

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 65007360

約数和(自身を除く): 33509630

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 71, 74, 109, 110, 142, 185, 218, 355, 370, 407, 545, 710, 781, 814, 1090, 1199, 1562, 2035, 2398, 2627, 3905, 4033, 4070, 5254, 5995, 7739, 7810, 8066, 11990, 13135, 15478, 20165, 26270, 28897, 38695, 40330, 44363, 57794, 77390, 85129, 88726, 144485, 170258, 221815, 286343, 288970, 425645, 443630, 572686, 851290, 1431715, 2863430, 3149773, 6299546, 15748865, 31497730]

約数ペア:

[(1, 31497730), (2, 15748865), (5, 6299546), (10, 3149773), (11, 2863430), (22, 1431715), (37, 851290), (55, 572686), (71, 443630), (74, 425645), (109, 288970), (110, 286343), (142, 221815), (185, 170258), (218, 144485), (355, 88726), (370, 85129), (407, 77390), (545, 57794), (710, 44363), (781, 40330), (814, 38695), (1090, 28897), (1199, 26270), (1562, 20165), (2035, 15478), (2398, 13135), (2627, 11990), (3905, 8066), (4033, 7810), (4070, 7739), (5254, 5995)]