15802840

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 37713600

約数和(自身を除く): 21910760

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 89, 92, 115, 178, 184, 193, 230, 356, 386, 445, 460, 712, 772, 890, 920, 965, 1544, 1780, 1930, 2047, 3560, 3860, 4094, 4439, 7720, 8188, 8878, 10235, 16376, 17177, 17756, 20470, 22195, 34354, 35512, 40940, 44390, 68708, 81880, 85885, 88780, 137416, 171770, 177560, 343540, 395071, 687080, 790142, 1580284, 1975355, 3160568, 3950710, 7901420, 15802840]

約数ペア:

[(1, 15802840), (2, 7901420), (4, 3950710), (5, 3160568), (8, 1975355), (10, 1580284), (20, 790142), (23, 687080), (40, 395071), (46, 343540), (89, 177560), (92, 171770), (115, 137416), (178, 88780), (184, 85885), (193, 81880), (230, 68708), (356, 44390), (386, 40940), (445, 35512), (460, 34354), (712, 22195), (772, 20470), (890, 17756), (920, 17177), (965, 16376), (1544, 10235), (1780, 8878), (1930, 8188), (2047, 7720), (3560, 4439), (3860, 4094)]