513886640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{90473}}^1$

素因数の和:90557

約数の個数: 40

約数和(自身を含む): 1211627808

約数和(自身を除く): 697741168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 90473, 180946, 361892, 452365, 723784, 904730, 1447568, 1809460, 3618920, 6423583, 7237840, 12847166, 25694332, 32117915, 51388664, 64235830, 102777328, 128471660, 256943320, 513886640]

約数ペア:

[(1, 513886640), (2, 256943320), (4, 128471660), (5, 102777328), (8, 64235830), (10, 51388664), (16, 32117915), (20, 25694332), (40, 12847166), (71, 7237840), (80, 6423583), (142, 3618920), (284, 1809460), (355, 1447568), (568, 904730), (710, 723784), (1136, 452365), (1420, 361892), (2840, 180946), (5680, 90473)]