64247840

素因数分解:

$2^5\times 5^1\times {\mathrm{281}}^1\times {\mathrm{1429}}^1$

素因数の和:1725

約数の個数: 48

約数和(自身を含む): 152432280

約数和(自身を除く): 88184440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 281, 562, 1124, 1405, 1429, 2248, 2810, 2858, 4496, 5620, 5716, 7145, 8992, 11240, 11432, 14290, 22480, 22864, 28580, 44960, 45728, 57160, 114320, 228640, 401549, 803098, 1606196, 2007745, 3212392, 4015490, 6424784, 8030980, 12849568, 16061960, 32123920, 64247840]

約数ペア:

[(1, 64247840), (2, 32123920), (4, 16061960), (5, 12849568), (8, 8030980), (10, 6424784), (16, 4015490), (20, 3212392), (32, 2007745), (40, 1606196), (80, 803098), (160, 401549), (281, 228640), (562, 114320), (1124, 57160), (1405, 45728), (1429, 44960), (2248, 28580), (2810, 22864), (2858, 22480), (4496, 14290), (5620, 11432), (5716, 11240), (7145, 8992)]