20045220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{829}}^1$

素因数の和:885

約数の個数: 96

約数和(自身を含む): 62469120

約数和(自身を除く): 42423900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 829, 930, 1209, 1612, 1658, 1860, 2015, 2418, 2487, 3316, 4030, 4145, 4836, 4974, 6045, 8060, 8290, 9948, 10777, 12090, 12435, 16580, 21554, 24180, 24870, 25699, 32331, 43108, 49740, 51398, 53885, 64662, 77097, 102796, 107770, 128495, 129324, 154194, 161655, 215540, 256990, 308388, 323310, 334087, 385485, 513980, 646620, 668174, 770970, 1002261, 1336348, 1541940, 1670435, 2004522, 3340870, 4009044, 5011305, 6681740, 10022610, 20045220]

約数ペア:

[(1, 20045220), (2, 10022610), (3, 6681740), (4, 5011305), (5, 4009044), (6, 3340870), (10, 2004522), (12, 1670435), (13, 1541940), (15, 1336348), (20, 1002261), (26, 770970), (30, 668174), (31, 646620), (39, 513980), (52, 385485), (60, 334087), (62, 323310), (65, 308388), (78, 256990), (93, 215540), (124, 161655), (130, 154194), (155, 129324), (156, 128495), (186, 107770), (195, 102796), (260, 77097), (310, 64662), (372, 53885), (390, 51398), (403, 49740), (465, 43108), (620, 32331), (780, 25699), (806, 24870), (829, 24180), (930, 21554), (1209, 16580), (1612, 12435), (1658, 12090), (1860, 10777), (2015, 9948), (2418, 8290), (2487, 8060), (3316, 6045), (4030, 4974), (4145, 4836)]