16872940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{631}}^1$

素因数の和:838

約数の個数: 48

約数和(自身を含む): 40771584

約数和(自身を除く): 23898644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 631, 764, 955, 1262, 1337, 1910, 2524, 2674, 3155, 3820, 4417, 5348, 6310, 6685, 8834, 12620, 13370, 17668, 22085, 26740, 44170, 88340, 120521, 241042, 482084, 602605, 843647, 1205210, 1687294, 2410420, 3374588, 4218235, 8436470, 16872940]

約数ペア:

[(1, 16872940), (2, 8436470), (4, 4218235), (5, 3374588), (7, 2410420), (10, 1687294), (14, 1205210), (20, 843647), (28, 602605), (35, 482084), (70, 241042), (140, 120521), (191, 88340), (382, 44170), (631, 26740), (764, 22085), (955, 17668), (1262, 13370), (1337, 12620), (1910, 8834), (2524, 6685), (2674, 6310), (3155, 5348), (3820, 4417)]