219469840

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{25639}}^1$

素因数の和:25759

約数の個数: 40

約数和(自身を含む): 515056320

約数和(自身を除く): 295586480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 4280, 8560, 25639, 51278, 102556, 128195, 205112, 256390, 410224, 512780, 1025560, 2051120, 2743373, 5486746, 10973492, 13716865, 21946984, 27433730, 43893968, 54867460, 109734920, 219469840]

約数ペア:

[(1, 219469840), (2, 109734920), (4, 54867460), (5, 43893968), (8, 27433730), (10, 21946984), (16, 13716865), (20, 10973492), (40, 5486746), (80, 2743373), (107, 2051120), (214, 1025560), (428, 512780), (535, 410224), (856, 256390), (1070, 205112), (1712, 128195), (2140, 102556), (4280, 51278), (8560, 25639)]