2016517840

素因数分解:

$2^4\times 5^1\times {\mathrm{647}}^1\times {\mathrm{38959}}^1$

素因数の和:39619

約数の個数: 40

約数和(自身を含む): 4695770880

約数和(自身を除く): 2679253040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 647, 1294, 2588, 3235, 5176, 6470, 10352, 12940, 25880, 38959, 51760, 77918, 155836, 194795, 311672, 389590, 623344, 779180, 1558360, 3116720, 25206473, 50412946, 100825892, 126032365, 201651784, 252064730, 403303568, 504129460, 1008258920, 2016517840]

約数ペア:

[(1, 2016517840), (2, 1008258920), (4, 504129460), (5, 403303568), (8, 252064730), (10, 201651784), (16, 126032365), (20, 100825892), (40, 50412946), (80, 25206473), (647, 3116720), (1294, 1558360), (2588, 779180), (3235, 623344), (5176, 389590), (6470, 311672), (10352, 194795), (12940, 155836), (25880, 77918), (38959, 51760)]