21671440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{38699}}^1$

素因数の和:38719

約数の個数: 40

約数和(自身を含む): 57585600

約数和(自身を除く): 35914160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 38699, 77398, 154796, 193495, 270893, 309592, 386990, 541786, 619184, 773980, 1083572, 1354465, 1547960, 2167144, 2708930, 3095920, 4334288, 5417860, 10835720, 21671440]

約数ペア:

[(1, 21671440), (2, 10835720), (4, 5417860), (5, 4334288), (7, 3095920), (8, 2708930), (10, 2167144), (14, 1547960), (16, 1354465), (20, 1083572), (28, 773980), (35, 619184), (40, 541786), (56, 386990), (70, 309592), (80, 270893), (112, 193495), (140, 154796), (280, 77398), (560, 38699)]