19730830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{601}}^1$

素因数の和:689

約数の個数: 48

約数和(自身を含む): 42000336

約数和(自身を除く): 22269506

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 67, 70, 98, 134, 245, 335, 469, 490, 601, 670, 938, 1202, 2345, 3005, 3283, 4207, 4690, 6010, 6566, 8414, 16415, 21035, 29449, 32830, 40267, 42070, 58898, 80534, 147245, 201335, 281869, 294490, 402670, 563738, 1409345, 1973083, 2818690, 3946166, 9865415, 19730830]

約数ペア:

[(1, 19730830), (2, 9865415), (5, 3946166), (7, 2818690), (10, 1973083), (14, 1409345), (35, 563738), (49, 402670), (67, 294490), (70, 281869), (98, 201335), (134, 147245), (245, 80534), (335, 58898), (469, 42070), (490, 40267), (601, 32830), (670, 29449), (938, 21035), (1202, 16415), (2345, 8414), (3005, 6566), (3283, 6010), (4207, 4690)]