207798220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{212039}}^1$

素因数の和:212062

約数の個数: 36

約数和(自身を含む): 507623760

約数和(自身を除く): 299825540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 212039, 424078, 848156, 1060195, 1484273, 2120390, 2968546, 4240780, 5937092, 7421365, 10389911, 14842730, 20779822, 29685460, 41559644, 51949555, 103899110, 207798220]

約数ペア:

[(1, 207798220), (2, 103899110), (4, 51949555), (5, 41559644), (7, 29685460), (10, 20779822), (14, 14842730), (20, 10389911), (28, 7421365), (35, 5937092), (49, 4240780), (70, 2968546), (98, 2120390), (140, 1484273), (196, 1060195), (245, 848156), (490, 424078), (980, 212039)]