1991570505

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{30727}}^1$

素因数の和:30913

約数の個数: 32

約数和(自身を含む): 3318624000

約数和(自身を除く): 1327053495

約数列:

[1, 3, 5, 15, 29, 87, 145, 149, 435, 447, 745, 2235, 4321, 12963, 21605, 30727, 64815, 92181, 153635, 460905, 891083, 2673249, 4455415, 4578323, 13366245, 13734969, 22891615, 68674845, 132771367, 398314101, 663856835, 1991570505]

約数ペア:

[(1, 1991570505), (3, 663856835), (5, 398314101), (15, 132771367), (29, 68674845), (87, 22891615), (145, 13734969), (149, 13366245), (435, 4578323), (447, 4455415), (745, 2673249), (2235, 891083), (4321, 460905), (12963, 153635), (21605, 92181), (30727, 64815)]