278628

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1$

素因数の和:152

約数の個数: 48

約数和(自身を含む): 774144

約数和(自身を除く): 495516

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 62, 84, 93, 107, 124, 186, 214, 217, 321, 372, 428, 434, 642, 651, 749, 868, 1284, 1302, 1498, 2247, 2604, 2996, 3317, 4494, 6634, 8988, 9951, 13268, 19902, 23219, 39804, 46438, 69657, 92876, 139314, 278628]

約数ペア:

[(1, 278628), (2, 139314), (3, 92876), (4, 69657), (6, 46438), (7, 39804), (12, 23219), (14, 19902), (21, 13268), (28, 9951), (31, 8988), (42, 6634), (62, 4494), (84, 3317), (93, 2996), (107, 2604), (124, 2247), (186, 1498), (214, 1302), (217, 1284), (321, 868), (372, 749), (428, 651), (434, 642)]