245480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:66

約数の個数: 48

約数和(自身を含む): 617220

約数和(自身を除く): 371740

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 361, 380, 646, 680, 722, 760, 1292, 1444, 1615, 1805, 2584, 2888, 3230, 3610, 6137, 6460, 7220, 12274, 12920, 14440, 24548, 30685, 49096, 61370, 122740, 245480]

約数ペア:

[(1, 245480), (2, 122740), (4, 61370), (5, 49096), (8, 30685), (10, 24548), (17, 14440), (19, 12920), (20, 12274), (34, 7220), (38, 6460), (40, 6137), (68, 3610), (76, 3230), (85, 2888), (95, 2584), (136, 1805), (152, 1615), (170, 1444), (190, 1292), (323, 760), (340, 722), (361, 680), (380, 646)]