2018380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1109}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 5221440

約数和(自身を除く): 3203060

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1109, 1820, 2218, 4436, 5545, 7763, 11090, 14417, 15526, 22180, 28834, 31052, 38815, 57668, 72085, 77630, 100919, 144170, 155260, 201838, 288340, 403676, 504595, 1009190, 2018380]

約数ペア:

[(1, 2018380), (2, 1009190), (4, 504595), (5, 403676), (7, 288340), (10, 201838), (13, 155260), (14, 144170), (20, 100919), (26, 77630), (28, 72085), (35, 57668), (52, 38815), (65, 31052), (70, 28834), (91, 22180), (130, 15526), (140, 14417), (182, 11090), (260, 7763), (364, 5545), (455, 4436), (910, 2218), (1109, 1820)]