28687725

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 57219552

約数和(自身を除く): 28531827

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 67, 75, 99, 165, 173, 201, 225, 275, 335, 495, 519, 603, 737, 825, 865, 1005, 1557, 1675, 1903, 2211, 2475, 2595, 3015, 3685, 4325, 5025, 5709, 6633, 7785, 9515, 11055, 11591, 12975, 15075, 17127, 18425, 28545, 33165, 34773, 38925, 47575, 55275, 57955, 85635, 104319, 127501, 142725, 165825, 173865, 289775, 382503, 428175, 521595, 637505, 869325, 1147509, 1912515, 2607975, 3187525, 5737545, 9562575, 28687725]

約数ペア:

[(1, 28687725), (3, 9562575), (5, 5737545), (9, 3187525), (11, 2607975), (15, 1912515), (25, 1147509), (33, 869325), (45, 637505), (55, 521595), (67, 428175), (75, 382503), (99, 289775), (165, 173865), (173, 165825), (201, 142725), (225, 127501), (275, 104319), (335, 85635), (495, 57955), (519, 55275), (603, 47575), (737, 38925), (825, 34773), (865, 33165), (1005, 28545), (1557, 18425), (1675, 17127), (1903, 15075), (2211, 12975), (2475, 11591), (2595, 11055), (3015, 9515), (3685, 7785), (4325, 6633), (5025, 5709)]