20248380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{431}}^1$

素因数の和:481

約数の個数: 120

約数和(自身を含む): 65862720

約数和(自身を除く): 45614340

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, 431, 435, 522, 540, 580, 783, 810, 862, 870, 1044, 1293, 1305, 1566, 1620, 1724, 1740, 2155, 2349, 2586, 2610, 3132, 3879, 3915, 4310, 4698, 5172, 5220, 6465, 7758, 7830, 8620, 9396, 11637, 11745, 12499, 12930, 15516, 15660, 19395, 23274, 23490, 24998, 25860, 34911, 37497, 38790, 46548, 46980, 49996, 58185, 62495, 69822, 74994, 77580, 112491, 116370, 124990, 139644, 149988, 174555, 187485, 224982, 232740, 249980, 337473, 349110, 374970, 449964, 562455, 674946, 698220, 749940, 1012419, 1124910, 1349892, 1687365, 2024838, 2249820, 3374730, 4049676, 5062095, 6749460, 10124190, 20248380]

約数ペア:

[(1, 20248380), (2, 10124190), (3, 6749460), (4, 5062095), (5, 4049676), (6, 3374730), (9, 2249820), (10, 2024838), (12, 1687365), (15, 1349892), (18, 1124910), (20, 1012419), (27, 749940), (29, 698220), (30, 674946), (36, 562455), (45, 449964), (54, 374970), (58, 349110), (60, 337473), (81, 249980), (87, 232740), (90, 224982), (108, 187485), (116, 174555), (135, 149988), (145, 139644), (162, 124990), (174, 116370), (180, 112491), (261, 77580), (270, 74994), (290, 69822), (324, 62495), (348, 58185), (405, 49996), (431, 46980), (435, 46548), (522, 38790), (540, 37497), (580, 34911), (783, 25860), (810, 24998), (862, 23490), (870, 23274), (1044, 19395), (1293, 15660), (1305, 15516), (1566, 12930), (1620, 12499), (1724, 11745), (1740, 11637), (2155, 9396), (2349, 8620), (2586, 7830), (2610, 7758), (3132, 6465), (3879, 5220), (3915, 5172), (4310, 4698)]