644325

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{71}}^1$

素因数の和:106

約数の個数: 36

約数和(自身を含む): 1187424

約数和(自身を除く): 543099

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 71, 75, 121, 165, 213, 275, 355, 363, 605, 781, 825, 1065, 1775, 1815, 2343, 3025, 3905, 5325, 8591, 9075, 11715, 19525, 25773, 42955, 58575, 128865, 214775, 644325]

約数ペア:

[(1, 644325), (3, 214775), (5, 128865), (11, 58575), (15, 42955), (25, 25773), (33, 19525), (55, 11715), (71, 9075), (75, 8591), (121, 5325), (165, 3905), (213, 3025), (275, 2343), (355, 1815), (363, 1775), (605, 1065), (781, 825)]