81022920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61381}}^1$

素因数の和:61406

約数の個数: 64

約数和(自身を含む): 265170240

約数和(自身を除く): 184147320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 61381, 122762, 184143, 245524, 306905, 368286, 491048, 613810, 675191, 736572, 920715, 1227620, 1350382, 1473144, 1841430, 2025573, 2455240, 2700764, 3375955, 3682860, 4051146, 5401528, 6751910, 7365720, 8102292, 10127865, 13503820, 16204584, 20255730, 27007640, 40511460, 81022920]

約数ペア:

[(1, 81022920), (2, 40511460), (3, 27007640), (4, 20255730), (5, 16204584), (6, 13503820), (8, 10127865), (10, 8102292), (11, 7365720), (12, 6751910), (15, 5401528), (20, 4051146), (22, 3682860), (24, 3375955), (30, 2700764), (33, 2455240), (40, 2025573), (44, 1841430), (55, 1473144), (60, 1350382), (66, 1227620), (88, 920715), (110, 736572), (120, 675191), (132, 613810), (165, 491048), (220, 368286), (264, 306905), (330, 245524), (440, 184143), (660, 122762), (1320, 61381)]