407202940

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{197}}^1\times {\mathrm{571}}^1$

素因数の和:958

約数の個数: 48

約数和(自身を含む): 865728864

約数和(自身を除く): 458525924

約数列:

[1, 2, 4, 5, 10, 20, 181, 197, 362, 394, 571, 724, 788, 905, 985, 1142, 1810, 1970, 2284, 2855, 3620, 3940, 5710, 11420, 35657, 71314, 103351, 112487, 142628, 178285, 206702, 224974, 356570, 413404, 449948, 516755, 562435, 713140, 1033510, 1124870, 2067020, 2249740, 20360147, 40720294, 81440588, 101800735, 203601470, 407202940]

約数ペア:

[(1, 407202940), (2, 203601470), (4, 101800735), (5, 81440588), (10, 40720294), (20, 20360147), (181, 2249740), (197, 2067020), (362, 1124870), (394, 1033510), (571, 713140), (724, 562435), (788, 516755), (905, 449948), (985, 413404), (1142, 356570), (1810, 224974), (1970, 206702), (2284, 178285), (2855, 142628), (3620, 112487), (3940, 103351), (5710, 71314), (11420, 35657)]