71828020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{67}}^1\times {\mathrm{443}}^1$

素因数の和:541

約数の個数: 72

約数和(自身を含む): 168652512

約数和(自身を除く): 96824492

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 121, 134, 220, 242, 268, 335, 443, 484, 605, 670, 737, 886, 1210, 1340, 1474, 1772, 2215, 2420, 2948, 3685, 4430, 4873, 7370, 8107, 8860, 9746, 14740, 16214, 19492, 24365, 29681, 32428, 40535, 48730, 53603, 59362, 81070, 97460, 107206, 118724, 148405, 162140, 214412, 268015, 296810, 326491, 536030, 593620, 652982, 1072060, 1305964, 1632455, 3264910, 3591401, 6529820, 7182802, 14365604, 17957005, 35914010, 71828020]

約数ペア:

[(1, 71828020), (2, 35914010), (4, 17957005), (5, 14365604), (10, 7182802), (11, 6529820), (20, 3591401), (22, 3264910), (44, 1632455), (55, 1305964), (67, 1072060), (110, 652982), (121, 593620), (134, 536030), (220, 326491), (242, 296810), (268, 268015), (335, 214412), (443, 162140), (484, 148405), (605, 118724), (670, 107206), (737, 97460), (886, 81070), (1210, 59362), (1340, 53603), (1474, 48730), (1772, 40535), (2215, 32428), (2420, 29681), (2948, 24365), (3685, 19492), (4430, 16214), (4873, 14740), (7370, 9746), (8107, 8860)]