28722375

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^2\times {\mathrm{211}}^1$

素因数の和:254

約数の個数: 72

約数和(自身を含む): 57181488

約数和(自身を除く): 28459113

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 121, 125, 165, 211, 225, 275, 363, 375, 495, 605, 633, 825, 1055, 1089, 1125, 1375, 1815, 1899, 2321, 2475, 3025, 3165, 4125, 5275, 5445, 6963, 9075, 9495, 11605, 12375, 15125, 15825, 20889, 25531, 26375, 27225, 34815, 45375, 47475, 58025, 76593, 79125, 104445, 127655, 136125, 174075, 229779, 237375, 290125, 382965, 522225, 638275, 870375, 1148895, 1914825, 2611125, 3191375, 5744475, 9574125, 28722375]

約数ペア:

[(1, 28722375), (3, 9574125), (5, 5744475), (9, 3191375), (11, 2611125), (15, 1914825), (25, 1148895), (33, 870375), (45, 638275), (55, 522225), (75, 382965), (99, 290125), (121, 237375), (125, 229779), (165, 174075), (211, 136125), (225, 127655), (275, 104445), (363, 79125), (375, 76593), (495, 58025), (605, 47475), (633, 45375), (825, 34815), (1055, 27225), (1089, 26375), (1125, 25531), (1375, 20889), (1815, 15825), (1899, 15125), (2321, 12375), (2475, 11605), (3025, 9495), (3165, 9075), (4125, 6963), (5275, 5445)]