16015220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 37406208

約数和(自身を除く): 21390988

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 1987, 2015, 3974, 4030, 7948, 8060, 9935, 19870, 25831, 39740, 51662, 61597, 103324, 123194, 129155, 246388, 258310, 307985, 516620, 615970, 800761, 1231940, 1601522, 3203044, 4003805, 8007610, 16015220]

約数ペア:

[(1, 16015220), (2, 8007610), (4, 4003805), (5, 3203044), (10, 1601522), (13, 1231940), (20, 800761), (26, 615970), (31, 516620), (52, 307985), (62, 258310), (65, 246388), (124, 129155), (130, 123194), (155, 103324), (260, 61597), (310, 51662), (403, 39740), (620, 25831), (806, 19870), (1612, 9935), (1987, 8060), (2015, 7948), (3974, 4030)]