156780975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{401}}^2$

素因数の和:828

約数の個数: 36

約数和(自身を含む): 279848408

約数和(自身を除く): 123067433

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 401, 975, 1203, 2005, 5213, 6015, 10025, 15639, 26065, 30075, 78195, 130325, 160801, 390975, 482403, 804005, 2090413, 2412015, 4020025, 6271239, 10452065, 12060075, 31356195, 52260325, 156780975]

約数ペア:

[(1, 156780975), (3, 52260325), (5, 31356195), (13, 12060075), (15, 10452065), (25, 6271239), (39, 4020025), (65, 2412015), (75, 2090413), (195, 804005), (325, 482403), (401, 390975), (975, 160801), (1203, 130325), (2005, 78195), (5213, 30075), (6015, 26065), (10025, 15639)]