19628180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6863}}^1$

素因数の和:6896

約数の個数: 48

約数和(自身を含む): 48432384

約数和(自身を除く): 28804204

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 6863, 13726, 27452, 34315, 68630, 75493, 89219, 137260, 150986, 178438, 301972, 356876, 377465, 446095, 754930, 892190, 981409, 1509860, 1784380, 1962818, 3925636, 4907045, 9814090, 19628180]

約数ペア:

[(1, 19628180), (2, 9814090), (4, 4907045), (5, 3925636), (10, 1962818), (11, 1784380), (13, 1509860), (20, 981409), (22, 892190), (26, 754930), (44, 446095), (52, 377465), (55, 356876), (65, 301972), (110, 178438), (130, 150986), (143, 137260), (220, 89219), (260, 75493), (286, 68630), (572, 34315), (715, 27452), (1430, 13726), (2860, 6863)]