18945052

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 40320000

約数和(自身を除く): 21374948

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 149, 239, 266, 298, 478, 532, 596, 956, 1043, 1673, 2086, 2831, 3346, 4172, 4541, 5662, 6692, 9082, 11324, 18164, 19817, 31787, 35611, 39634, 63574, 71222, 79268, 127148, 142444, 249277, 498554, 676609, 997108, 1353218, 2706436, 4736263, 9472526, 18945052]

約数ペア:

[(1, 18945052), (2, 9472526), (4, 4736263), (7, 2706436), (14, 1353218), (19, 997108), (28, 676609), (38, 498554), (76, 249277), (133, 142444), (149, 127148), (239, 79268), (266, 71222), (298, 63574), (478, 39634), (532, 35611), (596, 31787), (956, 19817), (1043, 18164), (1673, 11324), (2086, 9082), (2831, 6692), (3346, 5662), (4172, 4541)]