78936988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:386

約数の個数: 48

約数和(自身を含む): 153005440

約数和(自身を除く): 74068452

約数列:

[1, 2, 4, 13, 26, 52, 67, 134, 139, 163, 268, 278, 326, 556, 652, 871, 1742, 1807, 2119, 3484, 3614, 4238, 7228, 8476, 9313, 10921, 18626, 21842, 22657, 37252, 43684, 45314, 90628, 121069, 141973, 242138, 283946, 294541, 484276, 567892, 589082, 1178164, 1518019, 3036038, 6072076, 19734247, 39468494, 78936988]

約数ペア:

[(1, 78936988), (2, 39468494), (4, 19734247), (13, 6072076), (26, 3036038), (52, 1518019), (67, 1178164), (134, 589082), (139, 567892), (163, 484276), (268, 294541), (278, 283946), (326, 242138), (556, 141973), (652, 121069), (871, 90628), (1742, 45314), (1807, 43684), (2119, 37252), (3484, 22657), (3614, 21842), (4238, 18626), (7228, 10921), (8476, 9313)]