215605910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{72109}}^1$

素因数の和:72152

約数の個数: 32

約数和(自身を含む): 436121280

約数和(自身を除く): 220515370

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 72109, 144218, 360545, 721090, 937417, 1658507, 1874834, 3317014, 4687085, 8292535, 9374170, 16585070, 21560591, 43121182, 107802955, 215605910]

約数ペア:

[(1, 215605910), (2, 107802955), (5, 43121182), (10, 21560591), (13, 16585070), (23, 9374170), (26, 8292535), (46, 4687085), (65, 3317014), (115, 1874834), (130, 1658507), (230, 937417), (299, 721090), (598, 360545), (1495, 144218), (2990, 72109)]