205512640

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20717}}^1$

素因数の和:20765

約数の個数: 56

約数和(自身を含む): 505187712

約数和(自身を除く): 299675072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 20717, 41434, 82868, 103585, 165736, 207170, 331472, 414340, 642227, 662944, 828680, 1284454, 1325888, 1657360, 2568908, 3211135, 3314720, 5137816, 6422270, 6629440, 10275632, 12844540, 20551264, 25689080, 41102528, 51378160, 102756320, 205512640]

約数ペア:

[(1, 205512640), (2, 102756320), (4, 51378160), (5, 41102528), (8, 25689080), (10, 20551264), (16, 12844540), (20, 10275632), (31, 6629440), (32, 6422270), (40, 5137816), (62, 3314720), (64, 3211135), (80, 2568908), (124, 1657360), (155, 1325888), (160, 1284454), (248, 828680), (310, 662944), (320, 642227), (496, 414340), (620, 331472), (992, 207170), (1240, 165736), (1984, 103585), (2480, 82868), (4960, 41434), (9920, 20717)]