31064240

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{191}}^1$

素因数の和:330

約数の個数: 80

約数和(自身を含む): 77137920

約数和(自身を除く): 46073680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 107, 152, 190, 191, 214, 304, 380, 382, 428, 535, 760, 764, 856, 955, 1070, 1520, 1528, 1712, 1910, 2033, 2140, 3056, 3629, 3820, 4066, 4280, 7258, 7640, 8132, 8560, 10165, 14516, 15280, 16264, 18145, 20330, 20437, 29032, 32528, 36290, 40660, 40874, 58064, 72580, 81320, 81748, 102185, 145160, 162640, 163496, 204370, 290320, 326992, 388303, 408740, 776606, 817480, 1553212, 1634960, 1941515, 3106424, 3883030, 6212848, 7766060, 15532120, 31064240]

約数ペア:

[(1, 31064240), (2, 15532120), (4, 7766060), (5, 6212848), (8, 3883030), (10, 3106424), (16, 1941515), (19, 1634960), (20, 1553212), (38, 817480), (40, 776606), (76, 408740), (80, 388303), (95, 326992), (107, 290320), (152, 204370), (190, 163496), (191, 162640), (214, 145160), (304, 102185), (380, 81748), (382, 81320), (428, 72580), (535, 58064), (760, 40874), (764, 40660), (856, 36290), (955, 32528), (1070, 29032), (1520, 20437), (1528, 20330), (1712, 18145), (1910, 16264), (2033, 15280), (2140, 14516), (3056, 10165), (3629, 8560), (3820, 8132), (4066, 7640), (4280, 7258)]