2055654940

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1\times {\mathrm{1621}}^1$

素因数の和:2182

約数の個数: 48

約数和(自身を含む): 4357211040

約数和(自身を除く): 2301556100

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 389, 652, 778, 815, 1556, 1621, 1630, 1945, 3242, 3260, 3890, 6484, 7780, 8105, 16210, 32420, 63407, 126814, 253628, 264223, 317035, 528446, 630569, 634070, 1056892, 1261138, 1268140, 1321115, 2522276, 2642230, 3152845, 5284460, 6305690, 12611380, 102782747, 205565494, 411130988, 513913735, 1027827470, 2055654940]

約数ペア:

[(1, 2055654940), (2, 1027827470), (4, 513913735), (5, 411130988), (10, 205565494), (20, 102782747), (163, 12611380), (326, 6305690), (389, 5284460), (652, 3152845), (778, 2642230), (815, 2522276), (1556, 1321115), (1621, 1268140), (1630, 1261138), (1945, 1056892), (3242, 634070), (3260, 630569), (3890, 528446), (6484, 317035), (7780, 264223), (8105, 253628), (16210, 126814), (32420, 63407)]