28542195

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{109}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 56936880

約数和(自身を除く): 28394685

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 109, 115, 165, 207, 253, 327, 345, 495, 529, 545, 759, 981, 1035, 1199, 1265, 1587, 1635, 2277, 2507, 2645, 3597, 3795, 4761, 4905, 5819, 5995, 7521, 7935, 10791, 11385, 12535, 17457, 17985, 22563, 23805, 27577, 29095, 37605, 52371, 53955, 57661, 82731, 87285, 112815, 137885, 172983, 248193, 261855, 288305, 413655, 518949, 634271, 864915, 1240965, 1902813, 2594745, 3171355, 5708439, 9514065, 28542195]

約数ペア:

[(1, 28542195), (3, 9514065), (5, 5708439), (9, 3171355), (11, 2594745), (15, 1902813), (23, 1240965), (33, 864915), (45, 634271), (55, 518949), (69, 413655), (99, 288305), (109, 261855), (115, 248193), (165, 172983), (207, 137885), (253, 112815), (327, 87285), (345, 82731), (495, 57661), (529, 53955), (545, 52371), (759, 37605), (981, 29095), (1035, 27577), (1199, 23805), (1265, 22563), (1587, 17985), (1635, 17457), (2277, 12535), (2507, 11385), (2645, 10791), (3597, 7935), (3795, 7521), (4761, 5995), (4905, 5819)]