20177910

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{859}}^1$

素因数の和:907

約数の個数: 80

約数和(自身を含む): 56192400

約数和(自身を除く): 36014490

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, 859, 870, 1305, 1566, 1718, 2349, 2577, 2610, 3915, 4295, 4698, 5154, 7731, 7830, 8590, 11745, 12885, 15462, 23193, 23490, 24911, 25770, 38655, 46386, 49822, 69579, 74733, 77310, 115965, 124555, 139158, 149466, 224199, 231930, 249110, 347895, 373665, 448398, 672597, 695790, 747330, 1120995, 1345194, 2017791, 2241990, 3362985, 4035582, 6725970, 10088955, 20177910]

約数ペア:

[(1, 20177910), (2, 10088955), (3, 6725970), (5, 4035582), (6, 3362985), (9, 2241990), (10, 2017791), (15, 1345194), (18, 1120995), (27, 747330), (29, 695790), (30, 672597), (45, 448398), (54, 373665), (58, 347895), (81, 249110), (87, 231930), (90, 224199), (135, 149466), (145, 139158), (162, 124555), (174, 115965), (261, 77310), (270, 74733), (290, 69579), (405, 49822), (435, 46386), (522, 38655), (783, 25770), (810, 24911), (859, 23490), (870, 23193), (1305, 15462), (1566, 12885), (1718, 11745), (2349, 8590), (2577, 7830), (2610, 7731), (3915, 5154), (4295, 4698)]