19879968375

素因数分解:

$3^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{310019}}^1$

素因数の和:310062

約数の個数: 64

約数和(自身を含む): 38690496000

約数和(自身を除く): 18810527625

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 95, 125, 135, 171, 225, 285, 375, 475, 513, 675, 855, 1125, 1425, 2375, 2565, 3375, 4275, 7125, 12825, 21375, 64125, 310019, 930057, 1550095, 2790171, 4650285, 5890361, 7750475, 8370513, 13950855, 17671083, 23251425, 29451805, 38752375, 41852565, 53013249, 69754275, 88355415, 116257125, 147259025, 159039747, 209262825, 265066245, 348771375, 441777075, 736295125, 795198735, 1046314125, 1325331225, 2208885375, 3975993675, 6626656125, 19879968375]

約数ペア:

[(1, 19879968375), (3, 6626656125), (5, 3975993675), (9, 2208885375), (15, 1325331225), (19, 1046314125), (25, 795198735), (27, 736295125), (45, 441777075), (57, 348771375), (75, 265066245), (95, 209262825), (125, 159039747), (135, 147259025), (171, 116257125), (225, 88355415), (285, 69754275), (375, 53013249), (475, 41852565), (513, 38752375), (675, 29451805), (855, 23251425), (1125, 17671083), (1425, 13950855), (2375, 8370513), (2565, 7750475), (3375, 5890361), (4275, 4650285), (7125, 2790171), (12825, 1550095), (21375, 930057), (64125, 310019)]