15971820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{277}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 46377072

約数和(自身を除く): 30405252

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 277, 310, 372, 465, 554, 620, 831, 930, 961, 1108, 1385, 1662, 1860, 1922, 2770, 2883, 3324, 3844, 4155, 4805, 5540, 5766, 8310, 8587, 9610, 11532, 14415, 16620, 17174, 19220, 25761, 28830, 34348, 42935, 51522, 57660, 85870, 103044, 128805, 171740, 257610, 266197, 515220, 532394, 798591, 1064788, 1330985, 1597182, 2661970, 3194364, 3992955, 5323940, 7985910, 15971820]

約数ペア:

[(1, 15971820), (2, 7985910), (3, 5323940), (4, 3992955), (5, 3194364), (6, 2661970), (10, 1597182), (12, 1330985), (15, 1064788), (20, 798591), (30, 532394), (31, 515220), (60, 266197), (62, 257610), (93, 171740), (124, 128805), (155, 103044), (186, 85870), (277, 57660), (310, 51522), (372, 42935), (465, 34348), (554, 28830), (620, 25761), (831, 19220), (930, 17174), (961, 16620), (1108, 14415), (1385, 11532), (1662, 9610), (1860, 8587), (1922, 8310), (2770, 5766), (2883, 5540), (3324, 4805), (3844, 4155)]