20171340820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{461}}^1\times {\mathrm{128693}}^1$

素因数の和:129180

約数の個数: 48

約数和(自身を含む): 44949210768

約数和(自身を除く): 24777869948

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 461, 922, 1844, 2305, 4610, 7837, 9220, 15674, 31348, 39185, 78370, 128693, 156740, 257386, 514772, 643465, 1286930, 2187781, 2573860, 4375562, 8751124, 10938905, 21877810, 43755620, 59327473, 118654946, 237309892, 296637365, 593274730, 1008567041, 1186549460, 2017134082, 4034268164, 5042835205, 10085670410, 20171340820]

約数ペア:

[(1, 20171340820), (2, 10085670410), (4, 5042835205), (5, 4034268164), (10, 2017134082), (17, 1186549460), (20, 1008567041), (34, 593274730), (68, 296637365), (85, 237309892), (170, 118654946), (340, 59327473), (461, 43755620), (922, 21877810), (1844, 10938905), (2305, 8751124), (4610, 4375562), (7837, 2573860), (9220, 2187781), (15674, 1286930), (31348, 643465), (39185, 514772), (78370, 257386), (128693, 156740)]