121920516

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{229}}^1\times {\mathrm{643}}^1$

素因数の和:905

約数の個数: 72

約数和(自身を含む): 323494080

約数和(自身を除く): 201573564

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 229, 276, 414, 458, 643, 687, 828, 916, 1286, 1374, 1929, 2061, 2572, 2748, 3858, 4122, 5267, 5787, 7716, 8244, 10534, 11574, 14789, 15801, 21068, 23148, 29578, 31602, 44367, 47403, 59156, 63204, 88734, 94806, 133101, 147247, 177468, 189612, 266202, 294494, 441741, 532404, 588988, 883482, 1325223, 1766964, 2650446, 3386681, 5300892, 6773362, 10160043, 13546724, 20320086, 30480129, 40640172, 60960258, 121920516]

約数ペア:

[(1, 121920516), (2, 60960258), (3, 40640172), (4, 30480129), (6, 20320086), (9, 13546724), (12, 10160043), (18, 6773362), (23, 5300892), (36, 3386681), (46, 2650446), (69, 1766964), (92, 1325223), (138, 883482), (207, 588988), (229, 532404), (276, 441741), (414, 294494), (458, 266202), (643, 189612), (687, 177468), (828, 147247), (916, 133101), (1286, 94806), (1374, 88734), (1929, 63204), (2061, 59156), (2572, 47403), (2748, 44367), (3858, 31602), (4122, 29578), (5267, 23148), (5787, 21068), (7716, 15801), (8244, 14789), (10534, 11574)]