428568420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1020401}}^1$

素因数の和:1020420

約数の個数: 48

約数和(自身を含む): 1371420288

約数和(自身を除く): 942851868

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1020401, 2040802, 3061203, 4081604, 5102005, 6122406, 7142807, 10204010, 12244812, 14285614, 15306015, 20408020, 21428421, 28571228, 30612030, 35714035, 42856842, 61224060, 71428070, 85713684, 107142105, 142856140, 214284210, 428568420]

約数ペア:

[(1, 428568420), (2, 214284210), (3, 142856140), (4, 107142105), (5, 85713684), (6, 71428070), (7, 61224060), (10, 42856842), (12, 35714035), (14, 30612030), (15, 28571228), (20, 21428421), (21, 20408020), (28, 15306015), (30, 14285614), (35, 12244812), (42, 10204010), (60, 7142807), (70, 6122406), (84, 5102005), (105, 4081604), (140, 3061203), (210, 2040802), (420, 1020401)]