164400580

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{1553}}^1$

素因数の和:1708

約数の個数: 48

約数和(自身を含む): 355057920

約数和(自身を除く): 190657340

約数列:

[1, 2, 4, 5, 10, 20, 67, 79, 134, 158, 268, 316, 335, 395, 670, 790, 1340, 1553, 1580, 3106, 5293, 6212, 7765, 10586, 15530, 21172, 26465, 31060, 52930, 104051, 105860, 122687, 208102, 245374, 416204, 490748, 520255, 613435, 1040510, 1226870, 2081020, 2453740, 8220029, 16440058, 32880116, 41100145, 82200290, 164400580]

約数ペア:

[(1, 164400580), (2, 82200290), (4, 41100145), (5, 32880116), (10, 16440058), (20, 8220029), (67, 2453740), (79, 2081020), (134, 1226870), (158, 1040510), (268, 613435), (316, 520255), (335, 490748), (395, 416204), (670, 245374), (790, 208102), (1340, 122687), (1553, 105860), (1580, 104051), (3106, 52930), (5293, 31060), (6212, 26465), (7765, 21172), (10586, 15530)]