388636875

素因数分解:

$3^2\times 5^4\times {\mathrm{11}}^2\times {\mathrm{571}}^1$

素因数の和:619

約数の個数: 90

約数和(自身を含む): 772399628

約数和(自身を除く): 383762753

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 121, 125, 165, 225, 275, 363, 375, 495, 571, 605, 625, 825, 1089, 1125, 1375, 1713, 1815, 1875, 2475, 2855, 3025, 4125, 5139, 5445, 5625, 6281, 6875, 8565, 9075, 12375, 14275, 15125, 18843, 20625, 25695, 27225, 31405, 42825, 45375, 56529, 61875, 69091, 71375, 75625, 94215, 128475, 136125, 157025, 207273, 214125, 226875, 282645, 345455, 356875, 471075, 621819, 642375, 680625, 785125, 1036365, 1070625, 1413225, 1727275, 2355375, 3109095, 3211875, 3925625, 5181825, 7066125, 8636375, 11776875, 15545475, 25909125, 35330625, 43181875, 77727375, 129545625, 388636875]

約数ペア:

[(1, 388636875), (3, 129545625), (5, 77727375), (9, 43181875), (11, 35330625), (15, 25909125), (25, 15545475), (33, 11776875), (45, 8636375), (55, 7066125), (75, 5181825), (99, 3925625), (121, 3211875), (125, 3109095), (165, 2355375), (225, 1727275), (275, 1413225), (363, 1070625), (375, 1036365), (495, 785125), (571, 680625), (605, 642375), (625, 621819), (825, 471075), (1089, 356875), (1125, 345455), (1375, 282645), (1713, 226875), (1815, 214125), (1875, 207273), (2475, 157025), (2855, 136125), (3025, 128475), (4125, 94215), (5139, 75625), (5445, 71375), (5625, 69091), (6281, 61875), (6875, 56529), (8565, 45375), (9075, 42825), (12375, 31405), (14275, 27225), (15125, 25695), (18843, 20625)]