28527980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{971}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 65155104

約数和(自身を除く): 36627124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 226, 260, 452, 565, 971, 1130, 1469, 1942, 2260, 2938, 3884, 4855, 5876, 7345, 9710, 12623, 14690, 19420, 25246, 29380, 50492, 63115, 109723, 126230, 219446, 252460, 438892, 548615, 1097230, 1426399, 2194460, 2852798, 5705596, 7131995, 14263990, 28527980]

約数ペア:

[(1, 28527980), (2, 14263990), (4, 7131995), (5, 5705596), (10, 2852798), (13, 2194460), (20, 1426399), (26, 1097230), (52, 548615), (65, 438892), (113, 252460), (130, 219446), (226, 126230), (260, 109723), (452, 63115), (565, 50492), (971, 29380), (1130, 25246), (1469, 19420), (1942, 14690), (2260, 12623), (2938, 9710), (3884, 7345), (4855, 5876)]