218326480

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{63467}}^1$

素因数の和:63523

約数の個数: 40

約数和(自身を含む): 519422112

約数和(自身を除く): 301095632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 63467, 126934, 253868, 317335, 507736, 634670, 1015472, 1269340, 2538680, 2729081, 5077360, 5458162, 10916324, 13645405, 21832648, 27290810, 43665296, 54581620, 109163240, 218326480]

約数ペア:

[(1, 218326480), (2, 109163240), (4, 54581620), (5, 43665296), (8, 27290810), (10, 21832648), (16, 13645405), (20, 10916324), (40, 5458162), (43, 5077360), (80, 2729081), (86, 2538680), (172, 1269340), (215, 1015472), (344, 634670), (430, 507736), (688, 317335), (860, 253868), (1720, 126934), (3440, 63467)]