215513675

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2053}}^1$

素因数の和:2112

約数の個数: 48

約数和(自身を含む): 320916960

約数和(自身を除く): 105403285

約数列:

[1, 5, 13, 17, 19, 25, 65, 85, 95, 221, 247, 323, 325, 425, 475, 1105, 1235, 1615, 2053, 4199, 5525, 6175, 8075, 10265, 20995, 26689, 34901, 39007, 51325, 104975, 133445, 174505, 195035, 453713, 507091, 663119, 667225, 872525, 975175, 2268565, 2535455, 3315595, 8620547, 11342825, 12677275, 16577975, 43102735, 215513675]

約数ペア:

[(1, 215513675), (5, 43102735), (13, 16577975), (17, 12677275), (19, 11342825), (25, 8620547), (65, 3315595), (85, 2535455), (95, 2268565), (221, 975175), (247, 872525), (323, 667225), (325, 663119), (425, 507091), (475, 453713), (1105, 195035), (1235, 174505), (1615, 133445), (2053, 104975), (4199, 51325), (5525, 39007), (6175, 34901), (8075, 26689), (10265, 20995)]