13481875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:121

約数の個数: 40

約数和(自身を含む): 19231344

約数和(自身を除く): 5749469

約数列:

[1, 5, 11, 25, 37, 53, 55, 125, 185, 265, 275, 407, 583, 625, 925, 1325, 1375, 1961, 2035, 2915, 4625, 6625, 6875, 9805, 10175, 14575, 21571, 23125, 33125, 49025, 50875, 72875, 107855, 245125, 254375, 364375, 539275, 1225625, 2696375, 13481875]

約数ペア:

[(1, 13481875), (5, 2696375), (11, 1225625), (25, 539275), (37, 364375), (53, 254375), (55, 245125), (125, 107855), (185, 72875), (265, 50875), (275, 49025), (407, 33125), (583, 23125), (625, 21571), (925, 14575), (1325, 10175), (1375, 9805), (1961, 6875), (2035, 6625), (2915, 4625)]