205909620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{941}}^1$

素因数の和:1481

約数の個数: 96

約数和(自身を含む): 660877056

約数和(自身を除く): 454967436

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 521, 941, 1042, 1563, 1882, 2084, 2605, 2823, 3126, 3647, 3764, 4705, 5210, 5646, 6252, 6587, 7294, 7815, 9410, 10420, 10941, 11292, 13174, 14115, 14588, 15630, 18235, 18820, 19761, 21882, 26348, 28230, 31260, 32935, 36470, 39522, 43764, 54705, 56460, 65870, 72940, 79044, 98805, 109410, 131740, 197610, 218820, 395220, 490261, 980522, 1470783, 1961044, 2451305, 2941566, 3431827, 4902610, 5883132, 6863654, 7353915, 9805220, 10295481, 13727308, 14707830, 17159135, 20590962, 29415660, 34318270, 41181924, 51477405, 68636540, 102954810, 205909620]

約数ペア:

[(1, 205909620), (2, 102954810), (3, 68636540), (4, 51477405), (5, 41181924), (6, 34318270), (7, 29415660), (10, 20590962), (12, 17159135), (14, 14707830), (15, 13727308), (20, 10295481), (21, 9805220), (28, 7353915), (30, 6863654), (35, 5883132), (42, 4902610), (60, 3431827), (70, 2941566), (84, 2451305), (105, 1961044), (140, 1470783), (210, 980522), (420, 490261), (521, 395220), (941, 218820), (1042, 197610), (1563, 131740), (1882, 109410), (2084, 98805), (2605, 79044), (2823, 72940), (3126, 65870), (3647, 56460), (3764, 54705), (4705, 43764), (5210, 39522), (5646, 36470), (6252, 32935), (6587, 31260), (7294, 28230), (7815, 26348), (9410, 21882), (10420, 19761), (10941, 18820), (11292, 18235), (13174, 15630), (14115, 14588)]