207979960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{140527}}^1$

素因数の和:140575

約数の個数: 32

約数和(自身を含む): 480605760

約数和(自身を除く): 272625800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 140527, 281054, 562108, 702635, 1124216, 1405270, 2810540, 5199499, 5621080, 10398998, 20797996, 25997495, 41595992, 51994990, 103989980, 207979960]

約数ペア:

[(1, 207979960), (2, 103989980), (4, 51994990), (5, 41595992), (8, 25997495), (10, 20797996), (20, 10398998), (37, 5621080), (40, 5199499), (74, 2810540), (148, 1405270), (185, 1124216), (296, 702635), (370, 562108), (740, 281054), (1480, 140527)]