79281620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{181}}^2$

素因数の和:393

約数の個数: 54

約数和(自身を含む): 184019598

約数和(自身を除く): 104737978

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 181, 220, 242, 362, 484, 605, 724, 905, 1210, 1810, 1991, 2420, 3620, 3982, 7964, 9955, 19910, 21901, 32761, 39820, 43802, 65522, 87604, 109505, 131044, 163805, 219010, 327610, 360371, 438020, 655220, 720742, 1441484, 1801855, 3603710, 3964081, 7207420, 7928162, 15856324, 19820405, 39640810, 79281620]

約数ペア:

[(1, 79281620), (2, 39640810), (4, 19820405), (5, 15856324), (10, 7928162), (11, 7207420), (20, 3964081), (22, 3603710), (44, 1801855), (55, 1441484), (110, 720742), (121, 655220), (181, 438020), (220, 360371), (242, 327610), (362, 219010), (484, 163805), (605, 131044), (724, 109505), (905, 87604), (1210, 65522), (1810, 43802), (1991, 39820), (2420, 32761), (3620, 21901), (3982, 19910), (7964, 9955)]