15264980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:201

約数の個数: 72

約数和(自身を含む): 36103200

約数和(自身を除く): 20838220

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 139, 170, 190, 278, 289, 323, 340, 380, 556, 578, 646, 695, 1156, 1292, 1390, 1445, 1615, 2363, 2641, 2780, 2890, 3230, 4726, 5282, 5491, 5780, 6460, 9452, 10564, 10982, 11815, 13205, 21964, 23630, 26410, 27455, 40171, 44897, 47260, 52820, 54910, 80342, 89794, 109820, 160684, 179588, 200855, 224485, 401710, 448970, 763249, 803420, 897940, 1526498, 3052996, 3816245, 7632490, 15264980]

約数ペア:

[(1, 15264980), (2, 7632490), (4, 3816245), (5, 3052996), (10, 1526498), (17, 897940), (19, 803420), (20, 763249), (34, 448970), (38, 401710), (68, 224485), (76, 200855), (85, 179588), (95, 160684), (139, 109820), (170, 89794), (190, 80342), (278, 54910), (289, 52820), (323, 47260), (340, 44897), (380, 40171), (556, 27455), (578, 26410), (646, 23630), (695, 21964), (1156, 13205), (1292, 11815), (1390, 10982), (1445, 10564), (1615, 9452), (2363, 6460), (2641, 5780), (2780, 5491), (2890, 5282), (3230, 4726)]