142438780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:931

約数の個数: 72

約数和(自身を含む): 333819360

約数和(自身を除く): 191380580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 121, 142, 220, 242, 284, 355, 484, 605, 710, 781, 829, 1210, 1420, 1562, 1658, 2420, 3124, 3316, 3905, 4145, 7810, 8290, 8591, 9119, 15620, 16580, 17182, 18238, 34364, 36476, 42955, 45595, 58859, 85910, 91190, 100309, 117718, 171820, 182380, 200618, 235436, 294295, 401236, 501545, 588590, 647449, 1003090, 1177180, 1294898, 2006180, 2589796, 3237245, 6474490, 7121939, 12948980, 14243878, 28487756, 35609695, 71219390, 142438780]

約数ペア:

[(1, 142438780), (2, 71219390), (4, 35609695), (5, 28487756), (10, 14243878), (11, 12948980), (20, 7121939), (22, 6474490), (44, 3237245), (55, 2589796), (71, 2006180), (110, 1294898), (121, 1177180), (142, 1003090), (220, 647449), (242, 588590), (284, 501545), (355, 401236), (484, 294295), (605, 235436), (710, 200618), (781, 182380), (829, 171820), (1210, 117718), (1420, 100309), (1562, 91190), (1658, 85910), (2420, 58859), (3124, 45595), (3316, 42955), (3905, 36476), (4145, 34364), (7810, 18238), (8290, 17182), (8591, 16580), (9119, 15620)]