248235910

素因数分解:

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

素因数の和:2069

約数の個数: 48

約数和(自身を含む): 497469168

約数和(自身を除く): 249233258

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 961, 1922, 1987, 2015, 3974, 4030, 4805, 9610, 9935, 12493, 19870, 24986, 25831, 51662, 61597, 62465, 123194, 124930, 129155, 258310, 307985, 615970, 800761, 1601522, 1909507, 3819014, 4003805, 8007610, 9547535, 19095070, 24823591, 49647182, 124117955, 248235910]

約数ペア:

[(1, 248235910), (2, 124117955), (5, 49647182), (10, 24823591), (13, 19095070), (26, 9547535), (31, 8007610), (62, 4003805), (65, 3819014), (130, 1909507), (155, 1601522), (310, 800761), (403, 615970), (806, 307985), (961, 258310), (1922, 129155), (1987, 124930), (2015, 123194), (3974, 62465), (4030, 61597), (4805, 51662), (9610, 25831), (9935, 24986), (12493, 19870)]