199921190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3907}}^1$

素因数の和:3981

約数の個数: 64

約数和(自身を含む): 445699584

約数和(自身を除く): 245778394

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 43, 70, 85, 86, 119, 170, 215, 238, 301, 430, 595, 602, 731, 1190, 1462, 1505, 3010, 3655, 3907, 5117, 7310, 7814, 10234, 19535, 25585, 27349, 39070, 51170, 54698, 66419, 132838, 136745, 168001, 273490, 332095, 336002, 464933, 664190, 840005, 929866, 1176007, 1680010, 2324665, 2352014, 2856017, 4649330, 5712034, 5880035, 11760070, 14280085, 19992119, 28560170, 39984238, 99960595, 199921190]

約数ペア:

[(1, 199921190), (2, 99960595), (5, 39984238), (7, 28560170), (10, 19992119), (14, 14280085), (17, 11760070), (34, 5880035), (35, 5712034), (43, 4649330), (70, 2856017), (85, 2352014), (86, 2324665), (119, 1680010), (170, 1176007), (215, 929866), (238, 840005), (301, 664190), (430, 464933), (595, 336002), (602, 332095), (731, 273490), (1190, 168001), (1462, 136745), (1505, 132838), (3010, 66419), (3655, 54698), (3907, 51170), (5117, 39070), (7310, 27349), (7814, 25585), (10234, 19535)]