15680020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{383}}^1$

素因数の和:504

約数の個数: 48

約数和(自身を含む): 34836480

約数和(自身を除く): 19156460

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 89, 92, 115, 178, 230, 356, 383, 445, 460, 766, 890, 1532, 1780, 1915, 2047, 3830, 4094, 7660, 8188, 8809, 10235, 17618, 20470, 34087, 35236, 40940, 44045, 68174, 88090, 136348, 170435, 176180, 340870, 681740, 784001, 1568002, 3136004, 3920005, 7840010, 15680020]

約数ペア:

[(1, 15680020), (2, 7840010), (4, 3920005), (5, 3136004), (10, 1568002), (20, 784001), (23, 681740), (46, 340870), (89, 176180), (92, 170435), (115, 136348), (178, 88090), (230, 68174), (356, 44045), (383, 40940), (445, 35236), (460, 34087), (766, 20470), (890, 17618), (1532, 10235), (1780, 8809), (1915, 8188), (2047, 7660), (3830, 4094)]