248820780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{319001}}^1$

素因数の和:319026

約数の個数: 48

約数和(自身を含む): 750292704

約数和(自身を除く): 501471924

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, 319001, 638002, 957003, 1276004, 1595005, 1914006, 3190010, 3828012, 4147013, 4785015, 6380020, 8294026, 9570030, 12441039, 16588052, 19140060, 20735065, 24882078, 41470130, 49764156, 62205195, 82940260, 124410390, 248820780]

約数ペア:

[(1, 248820780), (2, 124410390), (3, 82940260), (4, 62205195), (5, 49764156), (6, 41470130), (10, 24882078), (12, 20735065), (13, 19140060), (15, 16588052), (20, 12441039), (26, 9570030), (30, 8294026), (39, 6380020), (52, 4785015), (60, 4147013), (65, 3828012), (78, 3190010), (130, 1914006), (156, 1595005), (195, 1276004), (260, 957003), (390, 638002), (780, 319001)]