128575199240

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1245401}}^1$

素因数の和:1245530

約数の個数: 64

約数和(自身を含む): 302632686000

約数和(自身を除く): 174057486760

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 89, 116, 145, 178, 232, 290, 356, 445, 580, 712, 890, 1160, 1780, 2581, 3560, 5162, 10324, 12905, 20648, 25810, 51620, 103240, 1245401, 2490802, 4981604, 6227005, 9963208, 12454010, 24908020, 36116629, 49816040, 72233258, 110840689, 144466516, 180583145, 221681378, 288933032, 361166290, 443362756, 554203445, 722332580, 886725512, 1108406890, 1444665160, 2216813780, 3214379981, 4433627560, 6428759962, 12857519924, 16071899905, 25715039848, 32143799810, 64287599620, 128575199240]

約数ペア:

[(1, 128575199240), (2, 64287599620), (4, 32143799810), (5, 25715039848), (8, 16071899905), (10, 12857519924), (20, 6428759962), (29, 4433627560), (40, 3214379981), (58, 2216813780), (89, 1444665160), (116, 1108406890), (145, 886725512), (178, 722332580), (232, 554203445), (290, 443362756), (356, 361166290), (445, 288933032), (580, 221681378), (712, 180583145), (890, 144466516), (1160, 110840689), (1780, 72233258), (2581, 49816040), (3560, 36116629), (5162, 24908020), (10324, 12454010), (12905, 9963208), (20648, 6227005), (25810, 4981604), (51620, 2490802), (103240, 1245401)]