20772400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{4721}}^1$

素因数の和:4750

約数の個数: 60

約数和(自身を含む): 54454104

約数和(自身を除く): 33681704

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 176, 200, 220, 275, 400, 440, 550, 880, 1100, 2200, 4400, 4721, 9442, 18884, 23605, 37768, 47210, 51931, 75536, 94420, 103862, 118025, 188840, 207724, 236050, 259655, 377680, 415448, 472100, 519310, 830896, 944200, 1038620, 1298275, 1888400, 2077240, 2596550, 4154480, 5193100, 10386200, 20772400]

約数ペア:

[(1, 20772400), (2, 10386200), (4, 5193100), (5, 4154480), (8, 2596550), (10, 2077240), (11, 1888400), (16, 1298275), (20, 1038620), (22, 944200), (25, 830896), (40, 519310), (44, 472100), (50, 415448), (55, 377680), (80, 259655), (88, 236050), (100, 207724), (110, 188840), (176, 118025), (200, 103862), (220, 94420), (275, 75536), (400, 51931), (440, 47210), (550, 37768), (880, 23605), (1100, 18884), (2200, 9442), (4400, 4721)]