15213940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{401}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 36739584

約数和(自身を除く): 21525644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 271, 401, 542, 802, 1084, 1355, 1604, 1897, 2005, 2710, 2807, 3794, 4010, 5420, 5614, 7588, 8020, 9485, 11228, 14035, 18970, 28070, 37940, 56140, 108671, 217342, 434684, 543355, 760697, 1086710, 1521394, 2173420, 3042788, 3803485, 7606970, 15213940]

約数ペア:

[(1, 15213940), (2, 7606970), (4, 3803485), (5, 3042788), (7, 2173420), (10, 1521394), (14, 1086710), (20, 760697), (28, 543355), (35, 434684), (70, 217342), (140, 108671), (271, 56140), (401, 37940), (542, 28070), (802, 18970), (1084, 14035), (1355, 11228), (1604, 9485), (1897, 8020), (2005, 7588), (2710, 5614), (2807, 5420), (3794, 4010)]