215372235

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{64969}}^1$

素因数の和:65007

約数の個数: 32

約数和(自身を含む): 392938560

約数和(自身を除く): 177566325

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 64969, 194907, 324845, 844597, 974535, 1104473, 2533791, 3313419, 4222985, 5522365, 12668955, 14358149, 16567095, 43074447, 71790745, 215372235]

約数ペア:

[(1, 215372235), (3, 71790745), (5, 43074447), (13, 16567095), (15, 14358149), (17, 12668955), (39, 5522365), (51, 4222985), (65, 3313419), (85, 2533791), (195, 1104473), (221, 974535), (255, 844597), (663, 324845), (1105, 194907), (3315, 64969)]