78820020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{145963}}^1$

素因数の和:145981

約数の個数: 48

約数和(自身を含む): 245219520

約数和(自身を除く): 166399500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 145963, 291926, 437889, 583852, 729815, 875778, 1313667, 1459630, 1751556, 2189445, 2627334, 2919260, 3941001, 4378890, 5254668, 6568335, 7882002, 8757780, 13136670, 15764004, 19705005, 26273340, 39410010, 78820020]

約数ペア:

[(1, 78820020), (2, 39410010), (3, 26273340), (4, 19705005), (5, 15764004), (6, 13136670), (9, 8757780), (10, 7882002), (12, 6568335), (15, 5254668), (18, 4378890), (20, 3941001), (27, 2919260), (30, 2627334), (36, 2189445), (45, 1751556), (54, 1459630), (60, 1313667), (90, 875778), (108, 729815), (135, 583852), (180, 437889), (270, 291926), (540, 145963)]