1641780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1303}}^1$

素因数の和:1325

約数の個数: 72

約数和(自身を含む): 5695872

約数和(自身を除く): 4054092

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1303, 2606, 3909, 5212, 6515, 7818, 9121, 11727, 13030, 15636, 18242, 19545, 23454, 26060, 27363, 36484, 39090, 45605, 46908, 54726, 58635, 78180, 82089, 91210, 109452, 117270, 136815, 164178, 182420, 234540, 273630, 328356, 410445, 547260, 820890, 1641780]

約数ペア:

[(1, 1641780), (2, 820890), (3, 547260), (4, 410445), (5, 328356), (6, 273630), (7, 234540), (9, 182420), (10, 164178), (12, 136815), (14, 117270), (15, 109452), (18, 91210), (20, 82089), (21, 78180), (28, 58635), (30, 54726), (35, 46908), (36, 45605), (42, 39090), (45, 36484), (60, 27363), (63, 26060), (70, 23454), (84, 19545), (90, 18242), (105, 15636), (126, 13030), (140, 11727), (180, 9121), (210, 7818), (252, 6515), (315, 5212), (420, 3909), (630, 2606), (1260, 1303)]