199258880

素因数分解:

$2^8\times 5^1\times {\mathrm{155671}}^1$

素因数の和:155692

約数の個数: 36

約数和(自身を含む): 477290352

約数和(自身を除く): 278031472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 155671, 311342, 622684, 778355, 1245368, 1556710, 2490736, 3113420, 4981472, 6226840, 9962944, 12453680, 19925888, 24907360, 39851776, 49814720, 99629440, 199258880]

約数ペア:

[(1, 199258880), (2, 99629440), (4, 49814720), (5, 39851776), (8, 24907360), (10, 19925888), (16, 12453680), (20, 9962944), (32, 6226840), (40, 4981472), (64, 3113420), (80, 2490736), (128, 1556710), (160, 1245368), (256, 778355), (320, 622684), (640, 311342), (1280, 155671)]