2007990110

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{215681}}^1$

素因数の和:215721

約数の個数: 48

約数和(自身を含む): 4425794640

約数和(自身を除く): 2417804530

約数列:

[1, 2, 5, 7, 10, 14, 19, 35, 38, 49, 70, 95, 98, 133, 190, 245, 266, 490, 665, 931, 1330, 1862, 4655, 9310, 215681, 431362, 1078405, 1509767, 2156810, 3019534, 4097939, 7548835, 8195878, 10568369, 15097670, 20489695, 21136738, 28685573, 40979390, 52841845, 57371146, 105683690, 143427865, 200799011, 286855730, 401598022, 1003995055, 2007990110]

約数ペア:

[(1, 2007990110), (2, 1003995055), (5, 401598022), (7, 286855730), (10, 200799011), (14, 143427865), (19, 105683690), (35, 57371146), (38, 52841845), (49, 40979390), (70, 28685573), (95, 21136738), (98, 20489695), (133, 15097670), (190, 10568369), (245, 8195878), (266, 7548835), (490, 4097939), (665, 3019534), (931, 2156810), (1330, 1509767), (1862, 1078405), (4655, 431362), (9310, 215681)]