65009920

素因数分解:

$2^8\times 5^1\times {\mathrm{50789}}^1$

素因数の和:50810

約数の個数: 36

約数和(自身を含む): 155722140

約数和(自身を除く): 90712220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 50789, 101578, 203156, 253945, 406312, 507890, 812624, 1015780, 1625248, 2031560, 3250496, 4063120, 6500992, 8126240, 13001984, 16252480, 32504960, 65009920]

約数ペア:

[(1, 65009920), (2, 32504960), (4, 16252480), (5, 13001984), (8, 8126240), (10, 6500992), (16, 4063120), (20, 3250496), (32, 2031560), (40, 1625248), (64, 1015780), (80, 812624), (128, 507890), (160, 406312), (256, 253945), (320, 203156), (640, 101578), (1280, 50789)]