30221380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1553}}^1$

素因数の和:1708

約数の個数: 48

約数和(自身を含む): 73100160

約数和(自身を除く): 42878780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1553, 1946, 2780, 3106, 3892, 4865, 6212, 7765, 9730, 10871, 15530, 19460, 21742, 31060, 43484, 54355, 108710, 215867, 217420, 431734, 863468, 1079335, 1511069, 2158670, 3022138, 4317340, 6044276, 7555345, 15110690, 30221380]

約数ペア:

[(1, 30221380), (2, 15110690), (4, 7555345), (5, 6044276), (7, 4317340), (10, 3022138), (14, 2158670), (20, 1511069), (28, 1079335), (35, 863468), (70, 431734), (139, 217420), (140, 215867), (278, 108710), (556, 54355), (695, 43484), (973, 31060), (1390, 21742), (1553, 19460), (1946, 15530), (2780, 10871), (3106, 9730), (3892, 7765), (4865, 6212)]