20188502500

素因数分解:

$2^2\times 5^4\times {\mathrm{41}}^1\times {\mathrm{196961}}^1$

素因数の和:197026

約数の個数: 60

約数和(自身を含む): 45225232668

約数和(自身を除く): 25036730168

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 125, 164, 205, 250, 410, 500, 625, 820, 1025, 1250, 2050, 2500, 4100, 5125, 10250, 20500, 25625, 51250, 102500, 196961, 393922, 787844, 984805, 1969610, 3939220, 4924025, 8075401, 9848050, 16150802, 19696100, 24620125, 32301604, 40377005, 49240250, 80754010, 98480500, 123100625, 161508020, 201885025, 246201250, 403770050, 492402500, 807540100, 1009425125, 2018850250, 4037700500, 5047125625, 10094251250, 20188502500]

約数ペア:

[(1, 20188502500), (2, 10094251250), (4, 5047125625), (5, 4037700500), (10, 2018850250), (20, 1009425125), (25, 807540100), (41, 492402500), (50, 403770050), (82, 246201250), (100, 201885025), (125, 161508020), (164, 123100625), (205, 98480500), (250, 80754010), (410, 49240250), (500, 40377005), (625, 32301604), (820, 24620125), (1025, 19696100), (1250, 16150802), (2050, 9848050), (2500, 8075401), (4100, 4924025), (5125, 3939220), (10250, 1969610), (20500, 984805), (25625, 787844), (51250, 393922), (102500, 196961)]