128947720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{17239}}^1$

素因数の和:17278

約数の個数: 64

約数和(自身を含む): 335145600

約数和(自身を除く): 206197880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 7480, 17239, 34478, 68956, 86195, 137912, 172390, 189629, 293063, 344780, 379258, 586126, 689560, 758516, 948145, 1172252, 1465315, 1517032, 1896290, 2344504, 2930630, 3223693, 3792580, 5861260, 6447386, 7585160, 11722520, 12894772, 16118465, 25789544, 32236930, 64473860, 128947720]

約数ペア:

[(1, 128947720), (2, 64473860), (4, 32236930), (5, 25789544), (8, 16118465), (10, 12894772), (11, 11722520), (17, 7585160), (20, 6447386), (22, 5861260), (34, 3792580), (40, 3223693), (44, 2930630), (55, 2344504), (68, 1896290), (85, 1517032), (88, 1465315), (110, 1172252), (136, 948145), (170, 758516), (187, 689560), (220, 586126), (340, 379258), (374, 344780), (440, 293063), (680, 189629), (748, 172390), (935, 137912), (1496, 86195), (1870, 68956), (3740, 34478), (7480, 17239)]