77700780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{431671}}^1$

素因数の和:431686

約数の個数: 36

約数和(自身を含む): 235692912

約数和(自身を除く): 157992132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 431671, 863342, 1295013, 1726684, 2158355, 2590026, 3885039, 4316710, 5180052, 6475065, 7770078, 8633420, 12950130, 15540156, 19425195, 25900260, 38850390, 77700780]

約数ペア:

[(1, 77700780), (2, 38850390), (3, 25900260), (4, 19425195), (5, 15540156), (6, 12950130), (9, 8633420), (10, 7770078), (12, 6475065), (15, 5180052), (18, 4316710), (20, 3885039), (30, 2590026), (36, 2158355), (45, 1726684), (60, 1295013), (90, 863342), (180, 431671)]