7640685

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{353}}^1$

素因数の和:414

約数の個数: 48

約数和(自身を含む): 14689584

約数和(自身を除く): 7048899

約数列:

[1, 3, 5, 9, 13, 15, 37, 39, 45, 65, 111, 117, 185, 195, 333, 353, 481, 555, 585, 1059, 1443, 1665, 1765, 2405, 3177, 4329, 4589, 5295, 7215, 13061, 13767, 15885, 21645, 22945, 39183, 41301, 65305, 68835, 117549, 169793, 195915, 206505, 509379, 587745, 848965, 1528137, 2546895, 7640685]

約数ペア:

[(1, 7640685), (3, 2546895), (5, 1528137), (9, 848965), (13, 587745), (15, 509379), (37, 206505), (39, 195915), (45, 169793), (65, 117549), (111, 68835), (117, 65305), (185, 41301), (195, 39183), (333, 22945), (353, 21645), (481, 15885), (555, 13767), (585, 13061), (1059, 7215), (1443, 5295), (1665, 4589), (1765, 4329), (2405, 3177)]