1656640

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:215

約数の個数: 56

約数和(自身を含む): 4096512

約数和(自身を除く): 2439872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 167, 248, 310, 320, 334, 496, 620, 668, 835, 992, 1240, 1336, 1670, 1984, 2480, 2672, 3340, 4960, 5177, 5344, 6680, 9920, 10354, 10688, 13360, 20708, 25885, 26720, 41416, 51770, 53440, 82832, 103540, 165664, 207080, 331328, 414160, 828320, 1656640]

約数ペア:

[(1, 1656640), (2, 828320), (4, 414160), (5, 331328), (8, 207080), (10, 165664), (16, 103540), (20, 82832), (31, 53440), (32, 51770), (40, 41416), (62, 26720), (64, 25885), (80, 20708), (124, 13360), (155, 10688), (160, 10354), (167, 9920), (248, 6680), (310, 5344), (320, 5177), (334, 4960), (496, 3340), (620, 2672), (668, 2480), (835, 1984), (992, 1670), (1240, 1336)]