129409840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1291}}^1$

素因数の和:1490

約数の個数: 80

約数和(自身を含む): 346049280

約数和(自身を除く): 216639440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 179, 280, 358, 560, 716, 895, 1253, 1291, 1432, 1790, 2506, 2582, 2864, 3580, 5012, 5164, 6265, 6455, 7160, 9037, 10024, 10328, 12530, 12910, 14320, 18074, 20048, 20656, 25060, 25820, 36148, 45185, 50120, 51640, 72296, 90370, 100240, 103280, 144592, 180740, 231089, 361480, 462178, 722960, 924356, 1155445, 1617623, 1848712, 2310890, 3235246, 3697424, 4621780, 6470492, 8088115, 9243560, 12940984, 16176230, 18487120, 25881968, 32352460, 64704920, 129409840]

約数ペア:

[(1, 129409840), (2, 64704920), (4, 32352460), (5, 25881968), (7, 18487120), (8, 16176230), (10, 12940984), (14, 9243560), (16, 8088115), (20, 6470492), (28, 4621780), (35, 3697424), (40, 3235246), (56, 2310890), (70, 1848712), (80, 1617623), (112, 1155445), (140, 924356), (179, 722960), (280, 462178), (358, 361480), (560, 231089), (716, 180740), (895, 144592), (1253, 103280), (1291, 100240), (1432, 90370), (1790, 72296), (2506, 51640), (2582, 50120), (2864, 45185), (3580, 36148), (5012, 25820), (5164, 25060), (6265, 20656), (6455, 20048), (7160, 18074), (9037, 14320), (10024, 12910), (10328, 12530)]