661010

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:111

約数の個数: 48

約数和(自身を含む): 1477440

約数和(自身を除く): 816430

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 71, 95, 98, 133, 142, 190, 245, 266, 355, 490, 497, 665, 710, 931, 994, 1330, 1349, 1862, 2485, 2698, 3479, 4655, 4970, 6745, 6958, 9310, 9443, 13490, 17395, 18886, 34790, 47215, 66101, 94430, 132202, 330505, 661010]

約数ペア:

[(1, 661010), (2, 330505), (5, 132202), (7, 94430), (10, 66101), (14, 47215), (19, 34790), (35, 18886), (38, 17395), (49, 13490), (70, 9443), (71, 9310), (95, 6958), (98, 6745), (133, 4970), (142, 4655), (190, 3479), (245, 2698), (266, 2485), (355, 1862), (490, 1349), (497, 1330), (665, 994), (710, 931)]