20121741180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13681}}^1\times {\mathrm{8171}}^1$

素因数の和:21867

約数の個数: 72

約数和(自身を含む): 61047879984

約数和(自身を除く): 40926138804

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 8171, 13681, 16342, 24513, 27362, 32684, 40855, 41043, 49026, 54724, 68405, 73539, 81710, 82086, 98052, 122565, 123129, 136810, 147078, 163420, 164172, 205215, 245130, 246258, 273620, 294156, 367695, 410430, 490260, 492516, 615645, 735390, 820860, 1231290, 1470780, 2462580, 111787451, 223574902, 335362353, 447149804, 558937255, 670724706, 1006087059, 1117874510, 1341449412, 1676811765, 2012174118, 2235749020, 3353623530, 4024348236, 5030435295, 6707247060, 10060870590, 20121741180]

約数ペア:

[(1, 20121741180), (2, 10060870590), (3, 6707247060), (4, 5030435295), (5, 4024348236), (6, 3353623530), (9, 2235749020), (10, 2012174118), (12, 1676811765), (15, 1341449412), (18, 1117874510), (20, 1006087059), (30, 670724706), (36, 558937255), (45, 447149804), (60, 335362353), (90, 223574902), (180, 111787451), (8171, 2462580), (13681, 1470780), (16342, 1231290), (24513, 820860), (27362, 735390), (32684, 615645), (40855, 492516), (41043, 490260), (49026, 410430), (54724, 367695), (68405, 294156), (73539, 273620), (81710, 246258), (82086, 245130), (98052, 205215), (122565, 164172), (123129, 163420), (136810, 147078)]