77990660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{4993}}^1$

素因数の和:5084

約数の個数: 48

約数和(自身を含む): 181222272

約数和(自身を除く): 103231612

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 4993, 7810, 9986, 15620, 19972, 24965, 49930, 54923, 99860, 109846, 219692, 274615, 354503, 549230, 709006, 1098460, 1418012, 1772515, 3545030, 3899533, 7090060, 7799066, 15598132, 19497665, 38995330, 77990660]

約数ペア:

[(1, 77990660), (2, 38995330), (4, 19497665), (5, 15598132), (10, 7799066), (11, 7090060), (20, 3899533), (22, 3545030), (44, 1772515), (55, 1418012), (71, 1098460), (110, 709006), (142, 549230), (220, 354503), (284, 274615), (355, 219692), (710, 109846), (781, 99860), (1420, 54923), (1562, 49930), (3124, 24965), (3905, 19972), (4993, 15620), (7810, 9986)]