19722690

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1873}}^1$

素因数の和:1905

約数の個数: 80

約数和(自身を含む): 57142008

約数和(自身を除く): 37419318

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 1873, 2106, 3510, 3746, 5265, 5619, 9365, 10530, 11238, 16857, 18730, 24349, 28095, 33714, 48698, 50571, 56190, 73047, 84285, 101142, 121745, 146094, 151713, 168570, 219141, 243490, 252855, 303426, 365235, 438282, 505710, 657423, 730470, 758565, 1095705, 1314846, 1517130, 1972269, 2191410, 3287115, 3944538, 6574230, 9861345, 19722690]

約数ペア:

[(1, 19722690), (2, 9861345), (3, 6574230), (5, 3944538), (6, 3287115), (9, 2191410), (10, 1972269), (13, 1517130), (15, 1314846), (18, 1095705), (26, 758565), (27, 730470), (30, 657423), (39, 505710), (45, 438282), (54, 365235), (65, 303426), (78, 252855), (81, 243490), (90, 219141), (117, 168570), (130, 151713), (135, 146094), (162, 121745), (195, 101142), (234, 84285), (270, 73047), (351, 56190), (390, 50571), (405, 48698), (585, 33714), (702, 28095), (810, 24349), (1053, 18730), (1170, 16857), (1755, 11238), (1873, 10530), (2106, 9365), (3510, 5619), (3746, 5265)]