19723860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8429}}^1$

素因数の和:8457

約数の個数: 72

約数和(自身を含む): 64438920

約数和(自身を除く): 44715060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8429, 16858, 25287, 33716, 42145, 50574, 75861, 84290, 101148, 109577, 126435, 151722, 168580, 219154, 252870, 303444, 328731, 379305, 438308, 505740, 547885, 657462, 758610, 986193, 1095770, 1314924, 1517220, 1643655, 1972386, 2191540, 3287310, 3944772, 4930965, 6574620, 9861930, 19723860]

約数ペア:

[(1, 19723860), (2, 9861930), (3, 6574620), (4, 4930965), (5, 3944772), (6, 3287310), (9, 2191540), (10, 1972386), (12, 1643655), (13, 1517220), (15, 1314924), (18, 1095770), (20, 986193), (26, 758610), (30, 657462), (36, 547885), (39, 505740), (45, 438308), (52, 379305), (60, 328731), (65, 303444), (78, 252870), (90, 219154), (117, 168580), (130, 151722), (156, 126435), (180, 109577), (195, 101148), (234, 84290), (260, 75861), (390, 50574), (468, 42145), (585, 33716), (780, 25287), (1170, 16858), (2340, 8429)]