128439556

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{1129}}^1$

素因数の和:1396

約数の個数: 48

約数和(自身を含む): 273369600

約数和(自身を除く): 144930044

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 239, 476, 478, 956, 1129, 1673, 2258, 3346, 4063, 4516, 6692, 7903, 8126, 15806, 16252, 19193, 28441, 31612, 38386, 56882, 76772, 113764, 134351, 268702, 269831, 537404, 539662, 1079324, 1888817, 3777634, 4587127, 7555268, 9174254, 18348508, 32109889, 64219778, 128439556]

約数ペア:

[(1, 128439556), (2, 64219778), (4, 32109889), (7, 18348508), (14, 9174254), (17, 7555268), (28, 4587127), (34, 3777634), (68, 1888817), (119, 1079324), (238, 539662), (239, 537404), (476, 269831), (478, 268702), (956, 134351), (1129, 113764), (1673, 76772), (2258, 56882), (3346, 38386), (4063, 31612), (4516, 28441), (6692, 19193), (7903, 16252), (8126, 15806)]