51357440

素因数分解:

$2^8\times 5^1\times {\mathrm{40123}}^1$

素因数の和:40144

約数の個数: 36

約数和(自身を含む): 123020184

約数和(自身を除く): 71662744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 40123, 80246, 160492, 200615, 320984, 401230, 641968, 802460, 1283936, 1604920, 2567872, 3209840, 5135744, 6419680, 10271488, 12839360, 25678720, 51357440]

約数ペア:

[(1, 51357440), (2, 25678720), (4, 12839360), (5, 10271488), (8, 6419680), (10, 5135744), (16, 3209840), (20, 2567872), (32, 1604920), (40, 1283936), (64, 802460), (80, 641968), (128, 401230), (160, 320984), (256, 200615), (320, 160492), (640, 80246), (1280, 40123)]