215564360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1\times {\mathrm{709}}^1$

素因数の和:1422

約数の個数: 64

約数和(自身を含む): 530625600

約数和(自身を除く): 315061240

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 691, 709, 1382, 1418, 2764, 2836, 3455, 3545, 5528, 5672, 6910, 7090, 7601, 7799, 13820, 14180, 15202, 15598, 27640, 28360, 30404, 31196, 38005, 38995, 60808, 62392, 76010, 77990, 152020, 155980, 304040, 311960, 489919, 979838, 1959676, 2449595, 3919352, 4899190, 5389109, 9798380, 10778218, 19596760, 21556436, 26945545, 43112872, 53891090, 107782180, 215564360]

約数ペア:

[(1, 215564360), (2, 107782180), (4, 53891090), (5, 43112872), (8, 26945545), (10, 21556436), (11, 19596760), (20, 10778218), (22, 9798380), (40, 5389109), (44, 4899190), (55, 3919352), (88, 2449595), (110, 1959676), (220, 979838), (440, 489919), (691, 311960), (709, 304040), (1382, 155980), (1418, 152020), (2764, 77990), (2836, 76010), (3455, 62392), (3545, 60808), (5528, 38995), (5672, 38005), (6910, 31196), (7090, 30404), (7601, 28360), (7799, 27640), (13820, 15598), (14180, 15202)]