20160765

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 38522880

約数和(自身を除く): 18362115

約数列:

[1, 3, 5, 9, 15, 23, 27, 43, 45, 69, 115, 129, 135, 151, 207, 215, 345, 387, 453, 621, 645, 755, 989, 1035, 1161, 1359, 1935, 2265, 2967, 3105, 3473, 4077, 4945, 5805, 6493, 6795, 8901, 10419, 14835, 17365, 19479, 20385, 26703, 31257, 32465, 44505, 52095, 58437, 93771, 97395, 133515, 149339, 156285, 175311, 292185, 448017, 468855, 746695, 876555, 1344051, 2240085, 4032153, 6720255, 20160765]

約数ペア:

[(1, 20160765), (3, 6720255), (5, 4032153), (9, 2240085), (15, 1344051), (23, 876555), (27, 746695), (43, 468855), (45, 448017), (69, 292185), (115, 175311), (129, 156285), (135, 149339), (151, 133515), (207, 97395), (215, 93771), (345, 58437), (387, 52095), (453, 44505), (621, 32465), (645, 31257), (755, 26703), (989, 20385), (1035, 19479), (1161, 17365), (1359, 14835), (1935, 10419), (2265, 8901), (2967, 6795), (3105, 6493), (3473, 5805), (4077, 4945)]