217637360

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{691}}^1$

素因数の和:862

約数の個数: 80

約数和(自身を含む): 527204352

約数和(自身を除く): 309566992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 127, 155, 248, 254, 310, 496, 508, 620, 635, 691, 1016, 1240, 1270, 1382, 2032, 2480, 2540, 2764, 3455, 3937, 5080, 5528, 6910, 7874, 10160, 11056, 13820, 15748, 19685, 21421, 27640, 31496, 39370, 42842, 55280, 62992, 78740, 85684, 87757, 107105, 157480, 171368, 175514, 214210, 314960, 342736, 351028, 428420, 438785, 702056, 856840, 877570, 1404112, 1713680, 1755140, 2720467, 3510280, 5440934, 7020560, 10881868, 13602335, 21763736, 27204670, 43527472, 54409340, 108818680, 217637360]

約数ペア:

[(1, 217637360), (2, 108818680), (4, 54409340), (5, 43527472), (8, 27204670), (10, 21763736), (16, 13602335), (20, 10881868), (31, 7020560), (40, 5440934), (62, 3510280), (80, 2720467), (124, 1755140), (127, 1713680), (155, 1404112), (248, 877570), (254, 856840), (310, 702056), (496, 438785), (508, 428420), (620, 351028), (635, 342736), (691, 314960), (1016, 214210), (1240, 175514), (1270, 171368), (1382, 157480), (2032, 107105), (2480, 87757), (2540, 85684), (2764, 78740), (3455, 62992), (3937, 55280), (5080, 42842), (5528, 39370), (6910, 31496), (7874, 27640), (10160, 21421), (11056, 19685), (13820, 15748)]