20131812080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2543}}^1\times {\mathrm{5821}}^1$

素因数の和:8394

約数の個数: 80

約数和(自身を含む): 49587790464

約数和(自身を除く): 29455978384

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 2543, 5086, 5821, 10172, 11642, 12715, 20344, 23284, 25430, 29105, 40688, 43231, 46568, 50860, 58210, 86462, 93136, 98957, 101720, 116420, 172924, 197914, 203440, 216155, 232840, 345848, 395828, 432310, 465680, 494785, 691696, 791656, 864620, 989570, 1583312, 1729240, 1979140, 3458480, 3958280, 7916560, 14802803, 29605606, 59211212, 74014015, 118422424, 148028030, 236844848, 251647651, 296056060, 503295302, 592112120, 1006590604, 1184224240, 1258238255, 2013181208, 2516476510, 4026362416, 5032953020, 10065906040, 20131812080]

約数ペア:

[(1, 20131812080), (2, 10065906040), (4, 5032953020), (5, 4026362416), (8, 2516476510), (10, 2013181208), (16, 1258238255), (17, 1184224240), (20, 1006590604), (34, 592112120), (40, 503295302), (68, 296056060), (80, 251647651), (85, 236844848), (136, 148028030), (170, 118422424), (272, 74014015), (340, 59211212), (680, 29605606), (1360, 14802803), (2543, 7916560), (5086, 3958280), (5821, 3458480), (10172, 1979140), (11642, 1729240), (12715, 1583312), (20344, 989570), (23284, 864620), (25430, 791656), (29105, 691696), (40688, 494785), (43231, 465680), (46568, 432310), (50860, 395828), (58210, 345848), (86462, 232840), (93136, 216155), (98957, 203440), (101720, 197914), (116420, 172924)]