20742780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15031}}^1$

素因数の和:15066

約数の個数: 48

約数和(自身を含む): 60609024

約数和(自身を除く): 39866244

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15031, 30062, 45093, 60124, 75155, 90186, 150310, 180372, 225465, 300620, 345713, 450930, 691426, 901860, 1037139, 1382852, 1728565, 2074278, 3457130, 4148556, 5185695, 6914260, 10371390, 20742780]

約数ペア:

[(1, 20742780), (2, 10371390), (3, 6914260), (4, 5185695), (5, 4148556), (6, 3457130), (10, 2074278), (12, 1728565), (15, 1382852), (20, 1037139), (23, 901860), (30, 691426), (46, 450930), (60, 345713), (69, 300620), (92, 225465), (115, 180372), (138, 150310), (230, 90186), (276, 75155), (345, 60124), (460, 45093), (690, 30062), (1380, 15031)]