20271870

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{863}}^1$

素因数の和:911

約数の個数: 80

約数和(自身を含む): 56453760

約数和(自身を除く): 36181890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 29, 30, 45, 54, 58, 81, 87, 90, 135, 145, 162, 174, 261, 270, 290, 405, 435, 522, 783, 810, 863, 870, 1305, 1566, 1726, 2349, 2589, 2610, 3915, 4315, 4698, 5178, 7767, 7830, 8630, 11745, 12945, 15534, 23301, 23490, 25027, 25890, 38835, 46602, 50054, 69903, 75081, 77670, 116505, 125135, 139806, 150162, 225243, 233010, 250270, 349515, 375405, 450486, 675729, 699030, 750810, 1126215, 1351458, 2027187, 2252430, 3378645, 4054374, 6757290, 10135935, 20271870]

約数ペア:

[(1, 20271870), (2, 10135935), (3, 6757290), (5, 4054374), (6, 3378645), (9, 2252430), (10, 2027187), (15, 1351458), (18, 1126215), (27, 750810), (29, 699030), (30, 675729), (45, 450486), (54, 375405), (58, 349515), (81, 250270), (87, 233010), (90, 225243), (135, 150162), (145, 139806), (162, 125135), (174, 116505), (261, 77670), (270, 75081), (290, 69903), (405, 50054), (435, 46602), (522, 38835), (783, 25890), (810, 25027), (863, 23490), (870, 23301), (1305, 15534), (1566, 12945), (1726, 11745), (2349, 8630), (2589, 7830), (2610, 7767), (3915, 5178), (4315, 4698)]