19209850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{659}}^1$

素因数の和:735

約数の個数: 48

約数和(自身を含む): 39774240

約数和(自身を除く): 20564390

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 53, 55, 106, 110, 265, 275, 530, 550, 583, 659, 1166, 1318, 1325, 2650, 2915, 3295, 5830, 6590, 7249, 14498, 14575, 16475, 29150, 32950, 34927, 36245, 69854, 72490, 174635, 181225, 349270, 362450, 384197, 768394, 873175, 1746350, 1920985, 3841970, 9604925, 19209850]

約数ペア:

[(1, 19209850), (2, 9604925), (5, 3841970), (10, 1920985), (11, 1746350), (22, 873175), (25, 768394), (50, 384197), (53, 362450), (55, 349270), (106, 181225), (110, 174635), (265, 72490), (275, 69854), (530, 36245), (550, 34927), (583, 32950), (659, 29150), (1166, 16475), (1318, 14575), (1325, 14498), (2650, 7249), (2915, 6590), (3295, 5830)]