289487360

素因数分解:

$2^9\times 5^1\times {\mathrm{113081}}^1$

素因数の和:113104

約数の個数: 40

約数和(自身を含む): 694097316

約数和(自身を除く): 404609956

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 113081, 226162, 452324, 565405, 904648, 1130810, 1809296, 2261620, 3618592, 4523240, 7237184, 9046480, 14474368, 18092960, 28948736, 36185920, 57897472, 72371840, 144743680, 289487360]

約数ペア:

[(1, 289487360), (2, 144743680), (4, 72371840), (5, 57897472), (8, 36185920), (10, 28948736), (16, 18092960), (20, 14474368), (32, 9046480), (40, 7237184), (64, 4523240), (80, 3618592), (128, 2261620), (160, 1809296), (256, 1130810), (320, 904648), (512, 565405), (640, 452324), (1280, 226162), (2560, 113081)]