71427780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{8443}}^1$

素因数の和:8505

約数の個数: 72

約数和(自身を含む): 221300352

約数和(自身を除く): 149872572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2820, 4230, 8443, 8460, 16886, 25329, 33772, 42215, 50658, 75987, 84430, 101316, 126645, 151974, 168860, 253290, 303948, 379935, 396821, 506580, 759870, 793642, 1190463, 1519740, 1587284, 1984105, 2380926, 3571389, 3968210, 4761852, 5952315, 7142778, 7936420, 11904630, 14285556, 17856945, 23809260, 35713890, 71427780]

約数ペア:

[(1, 71427780), (2, 35713890), (3, 23809260), (4, 17856945), (5, 14285556), (6, 11904630), (9, 7936420), (10, 7142778), (12, 5952315), (15, 4761852), (18, 3968210), (20, 3571389), (30, 2380926), (36, 1984105), (45, 1587284), (47, 1519740), (60, 1190463), (90, 793642), (94, 759870), (141, 506580), (180, 396821), (188, 379935), (235, 303948), (282, 253290), (423, 168860), (470, 151974), (564, 126645), (705, 101316), (846, 84430), (940, 75987), (1410, 50658), (1692, 42215), (2115, 33772), (2820, 25329), (4230, 16886), (8443, 8460)]