20624220

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1$

素因数の和:489

約数の個数: 120

約数和(自身を含む): 67082400

約数和(自身を除く): 46458180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 81, 87, 90, 108, 116, 135, 145, 162, 174, 180, 261, 270, 290, 324, 348, 405, 435, 439, 522, 540, 580, 783, 810, 870, 878, 1044, 1305, 1317, 1566, 1620, 1740, 1756, 2195, 2349, 2610, 2634, 3132, 3915, 3951, 4390, 4698, 5220, 5268, 6585, 7830, 7902, 8780, 9396, 11745, 11853, 12731, 13170, 15660, 15804, 19755, 23490, 23706, 25462, 26340, 35559, 38193, 39510, 46980, 47412, 50924, 59265, 63655, 71118, 76386, 79020, 114579, 118530, 127310, 142236, 152772, 177795, 190965, 229158, 237060, 254620, 343737, 355590, 381930, 458316, 572895, 687474, 711180, 763860, 1031211, 1145790, 1374948, 1718685, 2062422, 2291580, 3437370, 4124844, 5156055, 6874740, 10312110, 20624220]

約数ペア:

[(1, 20624220), (2, 10312110), (3, 6874740), (4, 5156055), (5, 4124844), (6, 3437370), (9, 2291580), (10, 2062422), (12, 1718685), (15, 1374948), (18, 1145790), (20, 1031211), (27, 763860), (29, 711180), (30, 687474), (36, 572895), (45, 458316), (54, 381930), (58, 355590), (60, 343737), (81, 254620), (87, 237060), (90, 229158), (108, 190965), (116, 177795), (135, 152772), (145, 142236), (162, 127310), (174, 118530), (180, 114579), (261, 79020), (270, 76386), (290, 71118), (324, 63655), (348, 59265), (405, 50924), (435, 47412), (439, 46980), (522, 39510), (540, 38193), (580, 35559), (783, 26340), (810, 25462), (870, 23706), (878, 23490), (1044, 19755), (1305, 15804), (1317, 15660), (1566, 13170), (1620, 12731), (1740, 11853), (1756, 11745), (2195, 9396), (2349, 8780), (2610, 7902), (2634, 7830), (3132, 6585), (3915, 5268), (3951, 5220), (4390, 4698)]