80788880

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^3\times {\mathrm{83}}^1$

素因数の和:165

約数の個数: 80

約数和(自身を含む): 198737280

約数和(自身を除く): 117948400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 83, 92, 115, 166, 184, 230, 332, 368, 415, 460, 529, 664, 830, 920, 1058, 1328, 1660, 1840, 1909, 2116, 2645, 3320, 3818, 4232, 5290, 6640, 7636, 8464, 9545, 10580, 12167, 15272, 19090, 21160, 24334, 30544, 38180, 42320, 43907, 48668, 60835, 76360, 87814, 97336, 121670, 152720, 175628, 194672, 219535, 243340, 351256, 439070, 486680, 702512, 878140, 973360, 1009861, 1756280, 2019722, 3512560, 4039444, 5049305, 8078888, 10098610, 16157776, 20197220, 40394440, 80788880]

約数ペア:

[(1, 80788880), (2, 40394440), (4, 20197220), (5, 16157776), (8, 10098610), (10, 8078888), (16, 5049305), (20, 4039444), (23, 3512560), (40, 2019722), (46, 1756280), (80, 1009861), (83, 973360), (92, 878140), (115, 702512), (166, 486680), (184, 439070), (230, 351256), (332, 243340), (368, 219535), (415, 194672), (460, 175628), (529, 152720), (664, 121670), (830, 97336), (920, 87814), (1058, 76360), (1328, 60835), (1660, 48668), (1840, 43907), (1909, 42320), (2116, 38180), (2645, 30544), (3320, 24334), (3818, 21160), (4232, 19090), (5290, 15272), (6640, 12167), (7636, 10580), (8464, 9545)]