26765000

素因数分解:

$2^3\times 5^4\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:180

約数の個数: 80

約数和(自身を含む): 64526220

約数和(自身を除く): 37761220

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 53, 100, 101, 106, 125, 200, 202, 212, 250, 265, 404, 424, 500, 505, 530, 625, 808, 1000, 1010, 1060, 1250, 1325, 2020, 2120, 2500, 2525, 2650, 4040, 5000, 5050, 5300, 5353, 6625, 10100, 10600, 10706, 12625, 13250, 20200, 21412, 25250, 26500, 26765, 33125, 42824, 50500, 53000, 53530, 63125, 66250, 101000, 107060, 126250, 132500, 133825, 214120, 252500, 265000, 267650, 505000, 535300, 669125, 1070600, 1338250, 2676500, 3345625, 5353000, 6691250, 13382500, 26765000]

約数ペア:

[(1, 26765000), (2, 13382500), (4, 6691250), (5, 5353000), (8, 3345625), (10, 2676500), (20, 1338250), (25, 1070600), (40, 669125), (50, 535300), (53, 505000), (100, 267650), (101, 265000), (106, 252500), (125, 214120), (200, 133825), (202, 132500), (212, 126250), (250, 107060), (265, 101000), (404, 66250), (424, 63125), (500, 53530), (505, 53000), (530, 50500), (625, 42824), (808, 33125), (1000, 26765), (1010, 26500), (1060, 25250), (1250, 21412), (1325, 20200), (2020, 13250), (2120, 12625), (2500, 10706), (2525, 10600), (2650, 10100), (4040, 6625), (5000, 5353), (5050, 5300)]