208299825

素因数分解:

$3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 388118016

約数和(自身を除く): 179818191

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 75, 111, 131, 185, 191, 225, 333, 393, 555, 573, 655, 925, 955, 1179, 1665, 1719, 1965, 2775, 2865, 3275, 4775, 4847, 5895, 7067, 8325, 8595, 9825, 14325, 14541, 21201, 24235, 25021, 29475, 35335, 42975, 43623, 63603, 72705, 75063, 106005, 121175, 125105, 176675, 218115, 225189, 318015, 363525, 375315, 530025, 625525, 925777, 1090575, 1125945, 1590075, 1876575, 2777331, 4628885, 5629725, 8331993, 13886655, 23144425, 41659965, 69433275, 208299825]

約数ペア:

[(1, 208299825), (3, 69433275), (5, 41659965), (9, 23144425), (15, 13886655), (25, 8331993), (37, 5629725), (45, 4628885), (75, 2777331), (111, 1876575), (131, 1590075), (185, 1125945), (191, 1090575), (225, 925777), (333, 625525), (393, 530025), (555, 375315), (573, 363525), (655, 318015), (925, 225189), (955, 218115), (1179, 176675), (1665, 125105), (1719, 121175), (1965, 106005), (2775, 75063), (2865, 72705), (3275, 63603), (4775, 43623), (4847, 42975), (5895, 35335), (7067, 29475), (8325, 25021), (8595, 24235), (9825, 21201), (14325, 14541)]