278330260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1070501}}^1$

素因数の和:1070523

約数の個数: 24

約数和(自身を含む): 629455176

約数和(自身を除く): 351124916

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1070501, 2141002, 4282004, 5352505, 10705010, 13916513, 21410020, 27833026, 55666052, 69582565, 139165130, 278330260]

約数ペア:

[(1, 278330260), (2, 139165130), (4, 69582565), (5, 55666052), (10, 27833026), (13, 21410020), (20, 13916513), (26, 10705010), (52, 5352505), (65, 4282004), (130, 2141002), (260, 1070501)]