20789220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11177}}^1$

素因数の和:11220

約数の個数: 48

約数和(自身を含む): 60092928

約数和(自身を除く): 39303708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 11177, 22354, 33531, 44708, 55885, 67062, 111770, 134124, 167655, 223540, 335310, 346487, 670620, 692974, 1039461, 1385948, 1732435, 2078922, 3464870, 4157844, 5197305, 6929740, 10394610, 20789220]

約数ペア:

[(1, 20789220), (2, 10394610), (3, 6929740), (4, 5197305), (5, 4157844), (6, 3464870), (10, 2078922), (12, 1732435), (15, 1385948), (20, 1039461), (30, 692974), (31, 670620), (60, 346487), (62, 335310), (93, 223540), (124, 167655), (155, 134124), (186, 111770), (310, 67062), (372, 55885), (465, 44708), (620, 33531), (930, 22354), (1860, 11177)]