28781438

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 51010560

約数和(自身を除く): 22229122

約数列:

[1, 2, 7, 14, 53, 79, 106, 158, 371, 491, 553, 742, 982, 1106, 3437, 4187, 6874, 8374, 26023, 29309, 38789, 52046, 58618, 77578, 182161, 271523, 364322, 543046, 2055817, 4111634, 14390719, 28781438]

約数ペア:

[(1, 28781438), (2, 14390719), (7, 4111634), (14, 2055817), (53, 543046), (79, 364322), (106, 271523), (158, 182161), (371, 77578), (491, 58618), (553, 52046), (742, 38789), (982, 29309), (1106, 26023), (3437, 8374), (4187, 6874)]