2786420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1531}}^1$

素因数の和:1560

約数の個数: 48

約数和(自身を含む): 7206528

約数和(自身を除く): 4420108

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, 1531, 1820, 3062, 6124, 7655, 10717, 15310, 19903, 21434, 30620, 39806, 42868, 53585, 79612, 99515, 107170, 139321, 199030, 214340, 278642, 398060, 557284, 696605, 1393210, 2786420]

約数ペア:

[(1, 2786420), (2, 1393210), (4, 696605), (5, 557284), (7, 398060), (10, 278642), (13, 214340), (14, 199030), (20, 139321), (26, 107170), (28, 99515), (35, 79612), (52, 53585), (65, 42868), (70, 39806), (91, 30620), (130, 21434), (140, 19903), (182, 15310), (260, 10717), (364, 7655), (455, 6124), (910, 3062), (1531, 1820)]