421785780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{540751}}^1$

素因数の和:540776

約数の個数: 48

約数和(自身を含む): 1271848704

約数和(自身を除く): 850062924

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, 540751, 1081502, 1622253, 2163004, 2703755, 3244506, 5407510, 6489012, 7029763, 8111265, 10815020, 14059526, 16222530, 21089289, 28119052, 32445060, 35148815, 42178578, 70297630, 84357156, 105446445, 140595260, 210892890, 421785780]

約数ペア:

[(1, 421785780), (2, 210892890), (3, 140595260), (4, 105446445), (5, 84357156), (6, 70297630), (10, 42178578), (12, 35148815), (13, 32445060), (15, 28119052), (20, 21089289), (26, 16222530), (30, 14059526), (39, 10815020), (52, 8111265), (60, 7029763), (65, 6489012), (78, 5407510), (130, 3244506), (156, 2703755), (195, 2163004), (260, 1622253), (390, 1081502), (780, 540751)]