15617820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1987}}^1$

素因数の和:2130

約数の個数: 48

約数和(自身を含む): 44085888

約数和(自身を除く): 28468068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 1987, 2620, 3930, 3974, 5961, 7860, 7948, 9935, 11922, 19870, 23844, 29805, 39740, 59610, 119220, 260297, 520594, 780891, 1041188, 1301485, 1561782, 2602970, 3123564, 3904455, 5205940, 7808910, 15617820]

約数ペア:

[(1, 15617820), (2, 7808910), (3, 5205940), (4, 3904455), (5, 3123564), (6, 2602970), (10, 1561782), (12, 1301485), (15, 1041188), (20, 780891), (30, 520594), (60, 260297), (131, 119220), (262, 59610), (393, 39740), (524, 29805), (655, 23844), (786, 19870), (1310, 11922), (1572, 9935), (1965, 7948), (1987, 7860), (2620, 5961), (3930, 3974)]