18791940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7639}}^1$

素因数の和:7692

約数の個数: 48

約数和(自身を含む): 53907840

約数和(自身を除く): 35115900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 7639, 15278, 22917, 30556, 38195, 45834, 76390, 91668, 114585, 152780, 229170, 313199, 458340, 626398, 939597, 1252796, 1565995, 1879194, 3131990, 3758388, 4697985, 6263980, 9395970, 18791940]

約数ペア:

[(1, 18791940), (2, 9395970), (3, 6263980), (4, 4697985), (5, 3758388), (6, 3131990), (10, 1879194), (12, 1565995), (15, 1252796), (20, 939597), (30, 626398), (41, 458340), (60, 313199), (82, 229170), (123, 152780), (164, 114585), (205, 91668), (246, 76390), (410, 45834), (492, 38195), (615, 30556), (820, 22917), (1230, 15278), (2460, 7639)]