77870720

素因数分解:

$2^7\times 5^1\times {\mathrm{281}}^1\times {\mathrm{433}}^1$

素因数の和:733

約数の個数: 64

約数和(自身を含む): 187253640

約数和(自身を除く): 109382920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 281, 320, 433, 562, 640, 866, 1124, 1405, 1732, 2165, 2248, 2810, 3464, 4330, 4496, 5620, 6928, 8660, 8992, 11240, 13856, 17320, 17984, 22480, 27712, 34640, 35968, 44960, 55424, 69280, 89920, 121673, 138560, 179840, 243346, 277120, 486692, 608365, 973384, 1216730, 1946768, 2433460, 3893536, 4866920, 7787072, 9733840, 15574144, 19467680, 38935360, 77870720]

約数ペア:

[(1, 77870720), (2, 38935360), (4, 19467680), (5, 15574144), (8, 9733840), (10, 7787072), (16, 4866920), (20, 3893536), (32, 2433460), (40, 1946768), (64, 1216730), (80, 973384), (128, 608365), (160, 486692), (281, 277120), (320, 243346), (433, 179840), (562, 138560), (640, 121673), (866, 89920), (1124, 69280), (1405, 55424), (1732, 44960), (2165, 35968), (2248, 34640), (2810, 27712), (3464, 22480), (4330, 17984), (4496, 17320), (5620, 13856), (6928, 11240), (8660, 8992)]