391560780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{502001}}^1$

素因数の和:502026

約数の個数: 48

約数和(自身を含む): 1180708704

約数和(自身を除く): 789147924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 502001, 1004002, 1506003, 2008004, 2510005, 3012006, 5020010, 6024012, 6526013, 7530015, 10040020, 13052026, 15060030, 19578039, 26104052, 30120060, 32630065, 39156078, 65260130, 78312156, 97890195, 130520260, 195780390, 391560780]

約数ペア:

[(1, 391560780), (2, 195780390), (3, 130520260), (4, 97890195), (5, 78312156), (6, 65260130), (10, 39156078), (12, 32630065), (13, 30120060), (15, 26104052), (20, 19578039), (26, 15060030), (30, 13052026), (39, 10040020), (52, 7530015), (60, 6526013), (65, 6024012), (78, 5020010), (130, 3012006), (156, 2510005), (195, 2008004), (260, 1506003), (390, 1004002), (780, 502001)]