20298460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{587}}^1$

素因数の和:635

約数の個数: 96

約数和(自身を含む): 55319040

約数和(自身を除く): 35020580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 52, 65, 70, 76, 91, 95, 130, 133, 140, 182, 190, 247, 260, 266, 364, 380, 455, 494, 532, 587, 665, 910, 988, 1174, 1235, 1330, 1729, 1820, 2348, 2470, 2660, 2935, 3458, 4109, 4940, 5870, 6916, 7631, 8218, 8645, 11153, 11740, 15262, 16436, 17290, 20545, 22306, 30524, 34580, 38155, 41090, 44612, 53417, 55765, 76310, 78071, 82180, 106834, 111530, 144989, 152620, 156142, 213668, 223060, 267085, 289978, 312284, 390355, 534170, 579956, 724945, 780710, 1014923, 1068340, 1449890, 1561420, 2029846, 2899780, 4059692, 5074615, 10149230, 20298460]

約数ペア:

[(1, 20298460), (2, 10149230), (4, 5074615), (5, 4059692), (7, 2899780), (10, 2029846), (13, 1561420), (14, 1449890), (19, 1068340), (20, 1014923), (26, 780710), (28, 724945), (35, 579956), (38, 534170), (52, 390355), (65, 312284), (70, 289978), (76, 267085), (91, 223060), (95, 213668), (130, 156142), (133, 152620), (140, 144989), (182, 111530), (190, 106834), (247, 82180), (260, 78071), (266, 76310), (364, 55765), (380, 53417), (455, 44612), (494, 41090), (532, 38155), (587, 34580), (665, 30524), (910, 22306), (988, 20545), (1174, 17290), (1235, 16436), (1330, 15262), (1729, 11740), (1820, 11153), (2348, 8645), (2470, 8218), (2660, 7631), (2935, 6916), (3458, 5870), (4109, 4940)]