78975975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{81001}}^1$

素因数の和:81027

約数の個数: 24

約数和(自身を含む): 140619472

約数和(自身を除く): 61643497

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 81001, 243003, 405005, 1053013, 1215015, 2025025, 3159039, 5265065, 6075075, 15795195, 26325325, 78975975]

約数ペア:

[(1, 78975975), (3, 26325325), (5, 15795195), (13, 6075075), (15, 5265065), (25, 3159039), (39, 2025025), (65, 1215015), (75, 1053013), (195, 405005), (325, 243003), (975, 81001)]