19880498508

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1745741}}^1$

素因数の和:1745834

約数の個数: 48

約数和(自身を含む): 50640483936

約数和(自身を除く): 30759985428

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 73, 78, 146, 156, 219, 292, 438, 876, 949, 1898, 2847, 3796, 5694, 11388, 1745741, 3491482, 5237223, 6982964, 10474446, 20948892, 22694633, 45389266, 68083899, 90778532, 127439093, 136167798, 254878186, 272335596, 382317279, 509756372, 764634558, 1529269116, 1656708209, 3313416418, 4970124627, 6626832836, 9940249254, 19880498508]

約数ペア:

[(1, 19880498508), (2, 9940249254), (3, 6626832836), (4, 4970124627), (6, 3313416418), (12, 1656708209), (13, 1529269116), (26, 764634558), (39, 509756372), (52, 382317279), (73, 272335596), (78, 254878186), (146, 136167798), (156, 127439093), (219, 90778532), (292, 68083899), (438, 45389266), (876, 22694633), (949, 20948892), (1898, 10474446), (2847, 6982964), (3796, 5237223), (5694, 3491482), (11388, 1745741)]