210820185

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1579}}^1$

素因数の和:1659

約数の個数: 64

約数和(自身を含む): 400435200

約数和(自身を除く): 189615015

約数列:

[1, 3, 5, 9, 15, 23, 27, 43, 45, 69, 115, 129, 135, 207, 215, 345, 387, 621, 645, 989, 1035, 1161, 1579, 1935, 2967, 3105, 4737, 4945, 5805, 7895, 8901, 14211, 14835, 23685, 26703, 36317, 42633, 44505, 67897, 71055, 108951, 133515, 181585, 203691, 213165, 326853, 339485, 544755, 611073, 980559, 1018455, 1561631, 1634265, 1833219, 3055365, 4684893, 4902795, 7808155, 9166095, 14054679, 23424465, 42164037, 70273395, 210820185]

約数ペア:

[(1, 210820185), (3, 70273395), (5, 42164037), (9, 23424465), (15, 14054679), (23, 9166095), (27, 7808155), (43, 4902795), (45, 4684893), (69, 3055365), (115, 1833219), (129, 1634265), (135, 1561631), (207, 1018455), (215, 980559), (345, 611073), (387, 544755), (621, 339485), (645, 326853), (989, 213165), (1035, 203691), (1161, 181585), (1579, 133515), (1935, 108951), (2967, 71055), (3105, 67897), (4737, 44505), (4945, 42633), (5805, 36317), (7895, 26703), (8901, 23685), (14211, 14835)]