31011948

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1103}}^1$

素因数の和:1195

約数の個数: 72

約数和(自身を含む): 86800896

約数和(自身を除く): 55788948

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 71, 99, 132, 142, 198, 213, 284, 396, 426, 639, 781, 852, 1103, 1278, 1562, 2206, 2343, 2556, 3124, 3309, 4412, 4686, 6618, 7029, 9372, 9927, 12133, 13236, 14058, 19854, 24266, 28116, 36399, 39708, 48532, 72798, 78313, 109197, 145596, 156626, 218394, 234939, 313252, 436788, 469878, 704817, 861443, 939756, 1409634, 1722886, 2584329, 2819268, 3445772, 5168658, 7752987, 10337316, 15505974, 31011948]

約数ペア:

[(1, 31011948), (2, 15505974), (3, 10337316), (4, 7752987), (6, 5168658), (9, 3445772), (11, 2819268), (12, 2584329), (18, 1722886), (22, 1409634), (33, 939756), (36, 861443), (44, 704817), (66, 469878), (71, 436788), (99, 313252), (132, 234939), (142, 218394), (198, 156626), (213, 145596), (284, 109197), (396, 78313), (426, 72798), (639, 48532), (781, 39708), (852, 36399), (1103, 28116), (1278, 24266), (1562, 19854), (2206, 14058), (2343, 13236), (2556, 12133), (3124, 9927), (3309, 9372), (4412, 7029), (4686, 6618)]