387400804

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{19681}}^1$

素因数の和:19748

約数の個数: 48

約数和(自身を含む): 837665920

約数和(自身を除く): 450265116

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 74, 76, 133, 148, 259, 266, 518, 532, 703, 1036, 1406, 2812, 4921, 9842, 19681, 19684, 39362, 78724, 137767, 275534, 373939, 551068, 728197, 747878, 1456394, 1495756, 2617573, 2912788, 5097379, 5235146, 10194758, 10470292, 13835743, 20389516, 27671486, 55342972, 96850201, 193700402, 387400804]

約数ペア:

[(1, 387400804), (2, 193700402), (4, 96850201), (7, 55342972), (14, 27671486), (19, 20389516), (28, 13835743), (37, 10470292), (38, 10194758), (74, 5235146), (76, 5097379), (133, 2912788), (148, 2617573), (259, 1495756), (266, 1456394), (518, 747878), (532, 728197), (703, 551068), (1036, 373939), (1406, 275534), (2812, 137767), (4921, 78724), (9842, 39362), (19681, 19684)]