8912820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{21221}}^1$

素因数の和:21240

約数の個数: 48

約数和(自身を含む): 28522368

約数和(自身を除く): 19609548

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 21221, 42442, 63663, 84884, 106105, 127326, 148547, 212210, 254652, 297094, 318315, 424420, 445641, 594188, 636630, 742735, 891282, 1273260, 1485470, 1782564, 2228205, 2970940, 4456410, 8912820]

約数ペア:

[(1, 8912820), (2, 4456410), (3, 2970940), (4, 2228205), (5, 1782564), (6, 1485470), (7, 1273260), (10, 891282), (12, 742735), (14, 636630), (15, 594188), (20, 445641), (21, 424420), (28, 318315), (30, 297094), (35, 254652), (42, 212210), (60, 148547), (70, 127326), (84, 106105), (105, 84884), (140, 63663), (210, 42442), (420, 21221)]