2009181880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{229}}^1\times {\mathrm{5101}}^1$

素因数の和:5384

約数の個数: 64

約数和(自身を含む): 4646901600

約数和(自身を除く): 2637719720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 229, 344, 430, 458, 860, 916, 1145, 1720, 1832, 2290, 4580, 5101, 9160, 9847, 10202, 19694, 20404, 25505, 39388, 40808, 49235, 51010, 78776, 98470, 102020, 196940, 204040, 219343, 393880, 438686, 877372, 1096715, 1168129, 1754744, 2193430, 2336258, 4386860, 4672516, 5840645, 8773720, 9345032, 11681290, 23362580, 46725160, 50229547, 100459094, 200918188, 251147735, 401836376, 502295470, 1004590940, 2009181880]

約数ペア:

[(1, 2009181880), (2, 1004590940), (4, 502295470), (5, 401836376), (8, 251147735), (10, 200918188), (20, 100459094), (40, 50229547), (43, 46725160), (86, 23362580), (172, 11681290), (215, 9345032), (229, 8773720), (344, 5840645), (430, 4672516), (458, 4386860), (860, 2336258), (916, 2193430), (1145, 1754744), (1720, 1168129), (1832, 1096715), (2290, 877372), (4580, 438686), (5101, 393880), (9160, 219343), (9847, 204040), (10202, 196940), (19694, 102020), (20404, 98470), (25505, 78776), (39388, 51010), (40808, 49235)]