20253570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{197}}^1$

素因数の和:379

約数の個数: 64

約数和(自身を含む): 51321600

約数和(自身を除く): 31068030

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 149, 197, 230, 298, 345, 394, 447, 591, 690, 745, 894, 985, 1182, 1490, 1970, 2235, 2955, 3427, 4470, 4531, 5910, 6854, 9062, 10281, 13593, 17135, 20562, 22655, 27186, 29353, 34270, 45310, 51405, 58706, 67965, 88059, 102810, 135930, 146765, 176118, 293530, 440295, 675119, 880590, 1350238, 2025357, 3375595, 4050714, 6751190, 10126785, 20253570]

約数ペア:

[(1, 20253570), (2, 10126785), (3, 6751190), (5, 4050714), (6, 3375595), (10, 2025357), (15, 1350238), (23, 880590), (30, 675119), (46, 440295), (69, 293530), (115, 176118), (138, 146765), (149, 135930), (197, 102810), (230, 88059), (298, 67965), (345, 58706), (394, 51405), (447, 45310), (591, 34270), (690, 29353), (745, 27186), (894, 22655), (985, 20562), (1182, 17135), (1490, 13593), (1970, 10281), (2235, 9062), (2955, 6854), (3427, 5910), (4470, 4531)]