129629440

素因数分解:

$2^8\times 5^1\times {\mathrm{101273}}^1$

素因数の和:101294

約数の個数: 36

約数和(自身を含む): 310506084

約数和(自身を除く): 180876644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 101273, 202546, 405092, 506365, 810184, 1012730, 1620368, 2025460, 3240736, 4050920, 6481472, 8101840, 12962944, 16203680, 25925888, 32407360, 64814720, 129629440]

約数ペア:

[(1, 129629440), (2, 64814720), (4, 32407360), (5, 25925888), (8, 16203680), (10, 12962944), (16, 8101840), (20, 6481472), (32, 4050920), (40, 3240736), (64, 2025460), (80, 1620368), (128, 1012730), (160, 810184), (256, 506365), (320, 405092), (640, 202546), (1280, 101273)]