211513540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{9623}}^1$

素因数の和:9796

約数の個数: 48

約数和(自身を含む): 510918912

約数和(自身を除く): 299405372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1570, 2198, 3140, 4396, 5495, 9623, 10990, 19246, 21980, 38492, 48115, 67361, 96230, 134722, 192460, 269444, 336805, 673610, 1347220, 1510811, 3021622, 6043244, 7554055, 10575677, 15108110, 21151354, 30216220, 42302708, 52878385, 105756770, 211513540]

約数ペア:

[(1, 211513540), (2, 105756770), (4, 52878385), (5, 42302708), (7, 30216220), (10, 21151354), (14, 15108110), (20, 10575677), (28, 7554055), (35, 6043244), (70, 3021622), (140, 1510811), (157, 1347220), (314, 673610), (628, 336805), (785, 269444), (1099, 192460), (1570, 134722), (2198, 96230), (3140, 67361), (4396, 48115), (5495, 38492), (9623, 21980), (10990, 19246)]