1991107812

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{2617}}^1$

素因数の和:2761

約数の個数: 96

約数和(自身を含む): 5066772480

約数和(自身を除く): 3075664668

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 47, 57, 71, 76, 94, 114, 141, 142, 188, 213, 228, 282, 284, 426, 564, 852, 893, 1349, 1786, 2617, 2679, 2698, 3337, 3572, 4047, 5234, 5358, 5396, 6674, 7851, 8094, 10011, 10468, 10716, 13348, 15702, 16188, 20022, 31404, 40044, 49723, 63403, 99446, 122999, 126806, 149169, 185807, 190209, 198892, 245998, 253612, 298338, 368997, 371614, 380418, 491996, 557421, 596676, 737994, 743228, 760836, 1114842, 1475988, 2229684, 2336981, 3530333, 4673962, 7010943, 7060666, 8732929, 9347924, 10590999, 14021886, 14121332, 17465858, 21181998, 26198787, 28043772, 34931716, 42363996, 52397574, 104795148, 165925651, 331851302, 497776953, 663702604, 995553906, 1991107812]

約数ペア:

[(1, 1991107812), (2, 995553906), (3, 663702604), (4, 497776953), (6, 331851302), (12, 165925651), (19, 104795148), (38, 52397574), (47, 42363996), (57, 34931716), (71, 28043772), (76, 26198787), (94, 21181998), (114, 17465858), (141, 14121332), (142, 14021886), (188, 10590999), (213, 9347924), (228, 8732929), (282, 7060666), (284, 7010943), (426, 4673962), (564, 3530333), (852, 2336981), (893, 2229684), (1349, 1475988), (1786, 1114842), (2617, 760836), (2679, 743228), (2698, 737994), (3337, 596676), (3572, 557421), (4047, 491996), (5234, 380418), (5358, 371614), (5396, 368997), (6674, 298338), (7851, 253612), (8094, 245998), (10011, 198892), (10468, 190209), (10716, 185807), (13348, 149169), (15702, 126806), (16188, 122999), (20022, 99446), (31404, 63403), (40044, 49723)]