2787720

素因数分解:

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

素因数の和:1814

約数の個数: 64

約数和(自身を含む): 9011520

約数和(自身を除く): 6223800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 1787, 3574, 5361, 7148, 8935, 10722, 14296, 17870, 21444, 23231, 26805, 35740, 42888, 46462, 53610, 69693, 71480, 92924, 107220, 116155, 139386, 185848, 214440, 232310, 278772, 348465, 464620, 557544, 696930, 929240, 1393860, 2787720]

約数ペア:

[(1, 2787720), (2, 1393860), (3, 929240), (4, 696930), (5, 557544), (6, 464620), (8, 348465), (10, 278772), (12, 232310), (13, 214440), (15, 185848), (20, 139386), (24, 116155), (26, 107220), (30, 92924), (39, 71480), (40, 69693), (52, 53610), (60, 46462), (65, 42888), (78, 35740), (104, 26805), (120, 23231), (130, 21444), (156, 17870), (195, 14296), (260, 10722), (312, 8935), (390, 7148), (520, 5361), (780, 3574), (1560, 1787)]