80898428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2213}}^1$

素因数の和:2286

約数の個数: 48

約数和(自身を含む): 164898720

約数和(自身を除く): 84000292

約数列:

[1, 2, 4, 13, 19, 26, 37, 38, 52, 74, 76, 148, 247, 481, 494, 703, 962, 988, 1406, 1924, 2213, 2812, 4426, 8852, 9139, 18278, 28769, 36556, 42047, 57538, 81881, 84094, 115076, 163762, 168188, 327524, 546611, 1064453, 1093222, 1555739, 2128906, 2186444, 3111478, 4257812, 6222956, 20224607, 40449214, 80898428]

約数ペア:

[(1, 80898428), (2, 40449214), (4, 20224607), (13, 6222956), (19, 4257812), (26, 3111478), (37, 2186444), (38, 2128906), (52, 1555739), (74, 1093222), (76, 1064453), (148, 546611), (247, 327524), (481, 168188), (494, 163762), (703, 115076), (962, 84094), (988, 81881), (1406, 57538), (1924, 42047), (2213, 36556), (2812, 28769), (4426, 18278), (8852, 9139)]