2015990020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{398417}}^1$

素因数の和:398460

約数の個数: 48

約数和(自身を含む): 4819264128

約数和(自身を除く): 2803274108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 460, 506, 1012, 1265, 2530, 5060, 398417, 796834, 1593668, 1992085, 3984170, 4382587, 7968340, 8765174, 9163591, 17530348, 18327182, 21912935, 36654364, 43825870, 45817955, 87651740, 91635910, 100799501, 183271820, 201599002, 403198004, 503997505, 1007995010, 2015990020]

約数ペア:

[(1, 2015990020), (2, 1007995010), (4, 503997505), (5, 403198004), (10, 201599002), (11, 183271820), (20, 100799501), (22, 91635910), (23, 87651740), (44, 45817955), (46, 43825870), (55, 36654364), (92, 21912935), (110, 18327182), (115, 17530348), (220, 9163591), (230, 8765174), (253, 7968340), (460, 4382587), (506, 3984170), (1012, 1992085), (1265, 1593668), (2530, 796834), (5060, 398417)]