18583880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2141}}^1$

素因数の和:2190

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 30767800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2141, 2170, 4282, 4340, 8564, 8680, 10705, 14987, 17128, 21410, 29974, 42820, 59948, 66371, 74935, 85640, 119896, 132742, 149870, 265484, 299740, 331855, 464597, 530968, 599480, 663710, 929194, 1327420, 1858388, 2322985, 2654840, 3716776, 4645970, 9291940, 18583880]

約数ペア:

[(1, 18583880), (2, 9291940), (4, 4645970), (5, 3716776), (7, 2654840), (8, 2322985), (10, 1858388), (14, 1327420), (20, 929194), (28, 663710), (31, 599480), (35, 530968), (40, 464597), (56, 331855), (62, 299740), (70, 265484), (124, 149870), (140, 132742), (155, 119896), (217, 85640), (248, 74935), (280, 66371), (310, 59948), (434, 42820), (620, 29974), (868, 21410), (1085, 17128), (1240, 14987), (1736, 10705), (2141, 8680), (2170, 8564), (4282, 4340)]