13131440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:330

約数の個数: 80

約数和(自身を含む): 35354880

約数和(自身を除く): 22223440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 131, 140, 179, 262, 280, 358, 524, 560, 655, 716, 895, 917, 1048, 1253, 1310, 1432, 1790, 1834, 2096, 2506, 2620, 2864, 3580, 3668, 4585, 5012, 5240, 6265, 7160, 7336, 9170, 10024, 10480, 12530, 14320, 14672, 18340, 20048, 23449, 25060, 36680, 46898, 50120, 73360, 93796, 100240, 117245, 164143, 187592, 234490, 328286, 375184, 468980, 656572, 820715, 937960, 1313144, 1641430, 1875920, 2626288, 3282860, 6565720, 13131440]

約数ペア:

[(1, 13131440), (2, 6565720), (4, 3282860), (5, 2626288), (7, 1875920), (8, 1641430), (10, 1313144), (14, 937960), (16, 820715), (20, 656572), (28, 468980), (35, 375184), (40, 328286), (56, 234490), (70, 187592), (80, 164143), (112, 117245), (131, 100240), (140, 93796), (179, 73360), (262, 50120), (280, 46898), (358, 36680), (524, 25060), (560, 23449), (655, 20048), (716, 18340), (895, 14672), (917, 14320), (1048, 12530), (1253, 10480), (1310, 10024), (1432, 9170), (1790, 7336), (1834, 7160), (2096, 6265), (2506, 5240), (2620, 5012), (2864, 4585), (3580, 3668)]