203421440

素因数分解:

$2^8\times 5^1\times {\mathrm{158923}}^1$

素因数の和:158944

約数の個数: 36

約数和(自身を含む): 487260984

約数和(自身を除く): 283839544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 158923, 317846, 635692, 794615, 1271384, 1589230, 2542768, 3178460, 5085536, 6356920, 10171072, 12713840, 20342144, 25427680, 40684288, 50855360, 101710720, 203421440]

約数ペア:

[(1, 203421440), (2, 101710720), (4, 50855360), (5, 40684288), (8, 25427680), (10, 20342144), (16, 12713840), (20, 10171072), (32, 6356920), (40, 5085536), (64, 3178460), (80, 2542768), (128, 1589230), (160, 1271384), (256, 794615), (320, 635692), (640, 317846), (1280, 158923)]