13239760

素因数分解:

$2^4\times 5^1\times {\mathrm{167}}^1\times {\mathrm{991}}^1$

素因数の和:1171

約数の個数: 40

約数和(自身を含む): 30998016

約数和(自身を除く): 17758256

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 167, 334, 668, 835, 991, 1336, 1670, 1982, 2672, 3340, 3964, 4955, 6680, 7928, 9910, 13360, 15856, 19820, 39640, 79280, 165497, 330994, 661988, 827485, 1323976, 1654970, 2647952, 3309940, 6619880, 13239760]

約数ペア:

[(1, 13239760), (2, 6619880), (4, 3309940), (5, 2647952), (8, 1654970), (10, 1323976), (16, 827485), (20, 661988), (40, 330994), (80, 165497), (167, 79280), (334, 39640), (668, 19820), (835, 15856), (991, 13360), (1336, 9910), (1670, 7928), (1982, 6680), (2672, 4955), (3340, 3964)]