81261720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4259}}^1$

素因数の和:4329

約数の個数: 96

約数和(自身を含む): 269146800

約数和(自身を除く): 187885080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 53, 60, 72, 90, 106, 120, 159, 180, 212, 265, 318, 360, 424, 477, 530, 636, 795, 954, 1060, 1272, 1590, 1908, 2120, 2385, 3180, 3816, 4259, 4770, 6360, 8518, 9540, 12777, 17036, 19080, 21295, 25554, 34072, 38331, 42590, 51108, 63885, 76662, 85180, 102216, 127770, 153324, 170360, 191655, 225727, 255540, 306648, 383310, 451454, 511080, 677181, 766620, 902908, 1128635, 1354362, 1533240, 1805816, 2031543, 2257270, 2708724, 3385905, 4063086, 4514540, 5417448, 6771810, 8126172, 9029080, 10157715, 13543620, 16252344, 20315430, 27087240, 40630860, 81261720]

約数ペア:

[(1, 81261720), (2, 40630860), (3, 27087240), (4, 20315430), (5, 16252344), (6, 13543620), (8, 10157715), (9, 9029080), (10, 8126172), (12, 6771810), (15, 5417448), (18, 4514540), (20, 4063086), (24, 3385905), (30, 2708724), (36, 2257270), (40, 2031543), (45, 1805816), (53, 1533240), (60, 1354362), (72, 1128635), (90, 902908), (106, 766620), (120, 677181), (159, 511080), (180, 451454), (212, 383310), (265, 306648), (318, 255540), (360, 225727), (424, 191655), (477, 170360), (530, 153324), (636, 127770), (795, 102216), (954, 85180), (1060, 76662), (1272, 63885), (1590, 51108), (1908, 42590), (2120, 38331), (2385, 34072), (3180, 25554), (3816, 21295), (4259, 19080), (4770, 17036), (6360, 12777), (8518, 9540)]