31415512

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^2$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 64423800

約数和(自身を除く): 33008288

約数列:

[1, 2, 4, 8, 19, 38, 41, 71, 76, 82, 142, 152, 164, 284, 328, 568, 779, 1349, 1558, 2698, 2911, 3116, 5041, 5396, 5822, 6232, 10082, 10792, 11644, 20164, 23288, 40328, 55309, 95779, 110618, 191558, 206681, 221236, 383116, 413362, 442472, 766232, 826724, 1653448, 3926939, 7853878, 15707756, 31415512]

約数ペア:

[(1, 31415512), (2, 15707756), (4, 7853878), (8, 3926939), (19, 1653448), (38, 826724), (41, 766232), (71, 442472), (76, 413362), (82, 383116), (142, 221236), (152, 206681), (164, 191558), (284, 110618), (328, 95779), (568, 55309), (779, 40328), (1349, 23288), (1558, 20164), (2698, 11644), (2911, 10792), (3116, 10082), (5041, 6232), (5396, 5822)]