12457720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1231}}^1$

素因数の和:1276

約数の個数: 64

約数和(自身を含む): 31933440

約数和(自身を除く): 19475720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1231, 1265, 2024, 2462, 2530, 4924, 5060, 6155, 9848, 10120, 12310, 13541, 24620, 27082, 28313, 49240, 54164, 56626, 67705, 108328, 113252, 135410, 141565, 226504, 270820, 283130, 311443, 541640, 566260, 622886, 1132520, 1245772, 1557215, 2491544, 3114430, 6228860, 12457720]

約数ペア:

[(1, 12457720), (2, 6228860), (4, 3114430), (5, 2491544), (8, 1557215), (10, 1245772), (11, 1132520), (20, 622886), (22, 566260), (23, 541640), (40, 311443), (44, 283130), (46, 270820), (55, 226504), (88, 141565), (92, 135410), (110, 113252), (115, 108328), (184, 67705), (220, 56626), (230, 54164), (253, 49240), (440, 28313), (460, 27082), (506, 24620), (920, 13541), (1012, 12310), (1231, 10120), (1265, 9848), (2024, 6155), (2462, 5060), (2530, 4924)]