71627920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9839}}^1$

素因数の和:9872

約数の個数: 80

約数和(自身を含む): 204986880

約数和(自身を除く): 133358960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 280, 364, 455, 520, 560, 728, 910, 1040, 1456, 1820, 3640, 7280, 9839, 19678, 39356, 49195, 68873, 78712, 98390, 127907, 137746, 157424, 196780, 255814, 275492, 344365, 393560, 511628, 550984, 639535, 688730, 787120, 895349, 1023256, 1101968, 1279070, 1377460, 1790698, 2046512, 2558140, 2754920, 3581396, 4476745, 5116280, 5509840, 7162792, 8953490, 10232560, 14325584, 17906980, 35813960, 71627920]

約数ペア:

[(1, 71627920), (2, 35813960), (4, 17906980), (5, 14325584), (7, 10232560), (8, 8953490), (10, 7162792), (13, 5509840), (14, 5116280), (16, 4476745), (20, 3581396), (26, 2754920), (28, 2558140), (35, 2046512), (40, 1790698), (52, 1377460), (56, 1279070), (65, 1101968), (70, 1023256), (80, 895349), (91, 787120), (104, 688730), (112, 639535), (130, 550984), (140, 511628), (182, 393560), (208, 344365), (260, 275492), (280, 255814), (364, 196780), (455, 157424), (520, 137746), (560, 127907), (728, 98390), (910, 78712), (1040, 68873), (1456, 49195), (1820, 39356), (3640, 19678), (7280, 9839)]