678803440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1212149}}^1$

素因数の和:1212169

約数の個数: 40

約数和(自身を含む): 1803679200

約数和(自身を除く): 1124875760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1212149, 2424298, 4848596, 6060745, 8485043, 9697192, 12121490, 16970086, 19394384, 24242980, 33940172, 42425215, 48485960, 67880344, 84850430, 96971920, 135760688, 169700860, 339401720, 678803440]

約数ペア:

[(1, 678803440), (2, 339401720), (4, 169700860), (5, 135760688), (7, 96971920), (8, 84850430), (10, 67880344), (14, 48485960), (16, 42425215), (20, 33940172), (28, 24242980), (35, 19394384), (40, 16970086), (56, 12121490), (70, 9697192), (80, 8485043), (112, 6060745), (140, 4848596), (280, 2424298), (560, 1212149)]