19773780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:377

約数の個数: 96

約数和(自身を含む): 60455808

約数和(自身を除く): 40682028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 101, 130, 156, 195, 202, 251, 260, 303, 390, 404, 502, 505, 606, 753, 780, 1004, 1010, 1212, 1255, 1313, 1506, 1515, 2020, 2510, 2626, 3012, 3030, 3263, 3765, 3939, 5020, 5252, 6060, 6526, 6565, 7530, 7878, 9789, 13052, 13130, 15060, 15756, 16315, 19578, 19695, 25351, 26260, 32630, 39156, 39390, 48945, 50702, 65260, 76053, 78780, 97890, 101404, 126755, 152106, 195780, 253510, 304212, 329563, 380265, 507020, 659126, 760530, 988689, 1318252, 1521060, 1647815, 1977378, 3295630, 3954756, 4943445, 6591260, 9886890, 19773780]

約数ペア:

[(1, 19773780), (2, 9886890), (3, 6591260), (4, 4943445), (5, 3954756), (6, 3295630), (10, 1977378), (12, 1647815), (13, 1521060), (15, 1318252), (20, 988689), (26, 760530), (30, 659126), (39, 507020), (52, 380265), (60, 329563), (65, 304212), (78, 253510), (101, 195780), (130, 152106), (156, 126755), (195, 101404), (202, 97890), (251, 78780), (260, 76053), (303, 65260), (390, 50702), (404, 48945), (502, 39390), (505, 39156), (606, 32630), (753, 26260), (780, 25351), (1004, 19695), (1010, 19578), (1212, 16315), (1255, 15756), (1313, 15060), (1506, 13130), (1515, 13052), (2020, 9789), (2510, 7878), (2626, 7530), (3012, 6565), (3030, 6526), (3263, 6060), (3765, 5252), (3939, 5020)]