1393860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1787}}^1$

素因数の和:1812

約数の個数: 48

約数和(自身を含む): 4205376

約数和(自身を除く): 2811516

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 1787, 3574, 5361, 7148, 8935, 10722, 17870, 21444, 23231, 26805, 35740, 46462, 53610, 69693, 92924, 107220, 116155, 139386, 232310, 278772, 348465, 464620, 696930, 1393860]

約数ペア:

[(1, 1393860), (2, 696930), (3, 464620), (4, 348465), (5, 278772), (6, 232310), (10, 139386), (12, 116155), (13, 107220), (15, 92924), (20, 69693), (26, 53610), (30, 46462), (39, 35740), (52, 26805), (60, 23231), (65, 21444), (78, 17870), (130, 10722), (156, 8935), (195, 7148), (260, 5361), (390, 3574), (780, 1787)]