8272640

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{281}}^1$

素因数の和:325

約数の個数: 72

約数和(自身を含む): 20750688

約数和(自身を除く): 12478048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 281, 320, 368, 460, 562, 640, 736, 920, 1124, 1280, 1405, 1472, 1840, 2248, 2810, 2944, 3680, 4496, 5620, 5888, 6463, 7360, 8992, 11240, 12926, 14720, 17984, 22480, 25852, 29440, 32315, 35968, 44960, 51704, 64630, 71936, 89920, 103408, 129260, 179840, 206816, 258520, 359680, 413632, 517040, 827264, 1034080, 1654528, 2068160, 4136320, 8272640]

約数ペア:

[(1, 8272640), (2, 4136320), (4, 2068160), (5, 1654528), (8, 1034080), (10, 827264), (16, 517040), (20, 413632), (23, 359680), (32, 258520), (40, 206816), (46, 179840), (64, 129260), (80, 103408), (92, 89920), (115, 71936), (128, 64630), (160, 51704), (184, 44960), (230, 35968), (256, 32315), (281, 29440), (320, 25852), (368, 22480), (460, 17984), (562, 14720), (640, 12926), (736, 11240), (920, 8992), (1124, 7360), (1280, 6463), (1405, 5888), (1472, 5620), (1840, 4496), (2248, 3680), (2810, 2944)]