413840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{739}}^1$

素因数の和:759

約数の個数: 40

約数和(自身を含む): 1101120

約数和(自身を除く): 687280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 739, 1478, 2956, 3695, 5173, 5912, 7390, 10346, 11824, 14780, 20692, 25865, 29560, 41384, 51730, 59120, 82768, 103460, 206920, 413840]

約数ペア:

[(1, 413840), (2, 206920), (4, 103460), (5, 82768), (7, 59120), (8, 51730), (10, 41384), (14, 29560), (16, 25865), (20, 20692), (28, 14780), (35, 11824), (40, 10346), (56, 7390), (70, 5912), (80, 5173), (112, 3695), (140, 2956), (280, 1478), (560, 739)]