320467340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{3911}}^1$

素因数の和:4178

約数の個数: 48

約数和(自身を含む): 715708224

約数和(自身を除く): 395240884

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 241, 340, 482, 964, 1205, 2410, 3911, 4097, 4820, 7822, 8194, 15644, 16388, 19555, 20485, 39110, 40970, 66487, 78220, 81940, 132974, 265948, 332435, 664870, 942551, 1329740, 1885102, 3770204, 4712755, 9425510, 16023367, 18851020, 32046734, 64093468, 80116835, 160233670, 320467340]

約数ペア:

[(1, 320467340), (2, 160233670), (4, 80116835), (5, 64093468), (10, 32046734), (17, 18851020), (20, 16023367), (34, 9425510), (68, 4712755), (85, 3770204), (170, 1885102), (241, 1329740), (340, 942551), (482, 664870), (964, 332435), (1205, 265948), (2410, 132974), (3911, 81940), (4097, 78220), (4820, 66487), (7822, 40970), (8194, 39110), (15644, 20485), (16388, 19555)]