31151916

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{563}}^1$

素因数の和:655

約数の個数: 72

約数和(自身を含む): 83144880

約数和(自身を除く): 51992964

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 53, 58, 87, 106, 116, 159, 174, 212, 261, 318, 348, 477, 522, 563, 636, 954, 1044, 1126, 1537, 1689, 1908, 2252, 3074, 3378, 4611, 5067, 6148, 6756, 9222, 10134, 13833, 16327, 18444, 20268, 27666, 29839, 32654, 48981, 55332, 59678, 65308, 89517, 97962, 119356, 146943, 179034, 195924, 268551, 293886, 358068, 537102, 587772, 865331, 1074204, 1730662, 2595993, 3461324, 5191986, 7787979, 10383972, 15575958, 31151916]

約数ペア:

[(1, 31151916), (2, 15575958), (3, 10383972), (4, 7787979), (6, 5191986), (9, 3461324), (12, 2595993), (18, 1730662), (29, 1074204), (36, 865331), (53, 587772), (58, 537102), (87, 358068), (106, 293886), (116, 268551), (159, 195924), (174, 179034), (212, 146943), (261, 119356), (318, 97962), (348, 89517), (477, 65308), (522, 59678), (563, 55332), (636, 48981), (954, 32654), (1044, 29839), (1126, 27666), (1537, 20268), (1689, 18444), (1908, 16327), (2252, 13833), (3074, 10134), (3378, 9222), (4611, 6756), (5067, 6148)]