19934750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{659}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 41081040

約数和(自身を除く): 21146290

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 125, 242, 250, 275, 550, 605, 659, 1210, 1318, 1375, 2750, 3025, 3295, 6050, 6590, 7249, 14498, 15125, 16475, 30250, 32950, 36245, 72490, 79739, 82375, 159478, 164750, 181225, 362450, 398695, 797390, 906125, 1812250, 1993475, 3986950, 9967375, 19934750]

約数ペア:

[(1, 19934750), (2, 9967375), (5, 3986950), (10, 1993475), (11, 1812250), (22, 906125), (25, 797390), (50, 398695), (55, 362450), (110, 181225), (121, 164750), (125, 159478), (242, 82375), (250, 79739), (275, 72490), (550, 36245), (605, 32950), (659, 30250), (1210, 16475), (1318, 15125), (1375, 14498), (2750, 7249), (3025, 6590), (3295, 6050)]