289711280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{213023}}^1$

素因数の和:213053

約数の個数: 40

約数和(自身を含む): 713204352

約数和(自身を除く): 423493072

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 213023, 426046, 852092, 1065115, 1704184, 2130230, 3408368, 3621391, 4260460, 7242782, 8520920, 14485564, 17041840, 18106955, 28971128, 36213910, 57942256, 72427820, 144855640, 289711280]

約数ペア:

[(1, 289711280), (2, 144855640), (4, 72427820), (5, 57942256), (8, 36213910), (10, 28971128), (16, 18106955), (17, 17041840), (20, 14485564), (34, 8520920), (40, 7242782), (68, 4260460), (80, 3621391), (85, 3408368), (136, 2130230), (170, 1704184), (272, 1065115), (340, 852092), (680, 426046), (1360, 213023)]