208946240

素因数分解:

$2^6\times 5^1\times {\mathrm{652957}}^1$

素因数の和:652974

約数の個数: 28

約数和(自身を含む): 497553996

約数和(自身を除く): 288607756

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 652957, 1305914, 2611828, 3264785, 5223656, 6529570, 10447312, 13059140, 20894624, 26118280, 41789248, 52236560, 104473120, 208946240]

約数ペア:

[(1, 208946240), (2, 104473120), (4, 52236560), (5, 41789248), (8, 26118280), (10, 20894624), (16, 13059140), (20, 10447312), (32, 6529570), (40, 5223656), (64, 3264785), (80, 2611828), (160, 1305914), (320, 652957)]