81511980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{123503}}^1$

素因数の和:123526

約数の個数: 48

約数和(自身を含む): 248984064

約数和(自身を除く): 167472084

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 123503, 247006, 370509, 494012, 617515, 741018, 1235030, 1358533, 1482036, 1852545, 2470060, 2717066, 3705090, 4075599, 5434132, 6792665, 7410180, 8151198, 13585330, 16302396, 20377995, 27170660, 40755990, 81511980]

約数ペア:

[(1, 81511980), (2, 40755990), (3, 27170660), (4, 20377995), (5, 16302396), (6, 13585330), (10, 8151198), (11, 7410180), (12, 6792665), (15, 5434132), (20, 4075599), (22, 3705090), (30, 2717066), (33, 2470060), (44, 1852545), (55, 1482036), (60, 1358533), (66, 1235030), (110, 741018), (132, 617515), (165, 494012), (220, 370509), (330, 247006), (660, 123503)]