128274375

素因数分解:

$3^1\times 5^4\times {\mathrm{37}}^1\times {\mathrm{43}}^2$

素因数の和:146

約数の個数: 60

約数和(自身を含む): 224721816

約数和(自身を除く): 96447441

約数列:

[1, 3, 5, 15, 25, 37, 43, 75, 111, 125, 129, 185, 215, 375, 555, 625, 645, 925, 1075, 1591, 1849, 1875, 2775, 3225, 4625, 4773, 5375, 5547, 7955, 9245, 13875, 16125, 23125, 23865, 26875, 27735, 39775, 46225, 68413, 69375, 80625, 119325, 138675, 198875, 205239, 231125, 342065, 596625, 693375, 994375, 1026195, 1155625, 1710325, 2983125, 3466875, 5130975, 8551625, 25654875, 42758125, 128274375]

約数ペア:

[(1, 128274375), (3, 42758125), (5, 25654875), (15, 8551625), (25, 5130975), (37, 3466875), (43, 2983125), (75, 1710325), (111, 1155625), (125, 1026195), (129, 994375), (185, 693375), (215, 596625), (375, 342065), (555, 231125), (625, 205239), (645, 198875), (925, 138675), (1075, 119325), (1591, 80625), (1849, 69375), (1875, 68413), (2775, 46225), (3225, 39775), (4625, 27735), (4773, 26875), (5375, 23865), (5547, 23125), (7955, 16125), (9245, 13875)]