16679840

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1709}}^1$

素因数の和:1785

約数の個数: 48

約数和(自身を含む): 40075560

約数和(自身を除く): 23395720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1709, 1952, 2440, 3418, 4880, 6836, 8545, 9760, 13672, 17090, 27344, 34180, 54688, 68360, 104249, 136720, 208498, 273440, 416996, 521245, 833992, 1042490, 1667984, 2084980, 3335968, 4169960, 8339920, 16679840]

約数ペア:

[(1, 16679840), (2, 8339920), (4, 4169960), (5, 3335968), (8, 2084980), (10, 1667984), (16, 1042490), (20, 833992), (32, 521245), (40, 416996), (61, 273440), (80, 208498), (122, 136720), (160, 104249), (244, 68360), (305, 54688), (488, 34180), (610, 27344), (976, 17090), (1220, 13672), (1709, 9760), (1952, 8545), (2440, 6836), (3418, 4880)]