778897818

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^2\times {\mathrm{1031}}^1$

素因数の和:1152

約数の個数: 72

約数和(自身を含む): 1816794720

約数和(自身を除く): 1037896902

約数列:

[1, 2, 3, 6, 9, 18, 19, 38, 47, 57, 94, 114, 141, 171, 282, 342, 423, 846, 893, 1031, 1786, 2062, 2209, 2679, 3093, 4418, 5358, 6186, 6627, 8037, 9279, 13254, 16074, 18558, 19589, 19881, 39178, 39762, 41971, 48457, 58767, 83942, 96914, 117534, 125913, 145371, 176301, 251826, 290742, 352602, 377739, 436113, 755478, 872226, 920683, 1841366, 2277479, 2762049, 4554958, 5524098, 6832437, 8286147, 13664874, 16572294, 20497311, 40994622, 43272101, 86544202, 129816303, 259632606, 389448909, 778897818]

約数ペア:

[(1, 778897818), (2, 389448909), (3, 259632606), (6, 129816303), (9, 86544202), (18, 43272101), (19, 40994622), (38, 20497311), (47, 16572294), (57, 13664874), (94, 8286147), (114, 6832437), (141, 5524098), (171, 4554958), (282, 2762049), (342, 2277479), (423, 1841366), (846, 920683), (893, 872226), (1031, 755478), (1786, 436113), (2062, 377739), (2209, 352602), (2679, 290742), (3093, 251826), (4418, 176301), (5358, 145371), (6186, 125913), (6627, 117534), (8037, 96914), (9279, 83942), (13254, 58767), (16074, 48457), (18558, 41971), (19589, 39762), (19881, 39178)]