638864080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{469753}}^1$

素因数の和:469783

約数の個数: 40

約数和(自身を含む): 1572736392

約数和(自身を除く): 933872312

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 469753, 939506, 1879012, 2348765, 3758024, 4697530, 7516048, 7985801, 9395060, 15971602, 18790120, 31943204, 37580240, 39929005, 63886408, 79858010, 127772816, 159716020, 319432040, 638864080]

約数ペア:

[(1, 638864080), (2, 319432040), (4, 159716020), (5, 127772816), (8, 79858010), (10, 63886408), (16, 39929005), (17, 37580240), (20, 31943204), (34, 18790120), (40, 15971602), (68, 9395060), (80, 7985801), (85, 7516048), (136, 4697530), (170, 3758024), (272, 2348765), (340, 1879012), (680, 939506), (1360, 469753)]