20199492124

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{173291}}^1$

素因数の和:173506

約数の個数: 48

約数和(自身を含む): 42388609536

約数和(自身を除く): 22189117412

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 181, 322, 362, 644, 724, 1267, 2534, 4163, 5068, 8326, 16652, 29141, 58282, 116564, 173291, 346582, 693164, 1213037, 2426074, 3985693, 4852148, 7971386, 15942772, 27899851, 31365671, 55799702, 62731342, 111599404, 125462684, 219559697, 439119394, 721410433, 878238788, 1442820866, 2885641732, 5049873031, 10099746062, 20199492124]

約数ペア:

[(1, 20199492124), (2, 10099746062), (4, 5049873031), (7, 2885641732), (14, 1442820866), (23, 878238788), (28, 721410433), (46, 439119394), (92, 219559697), (161, 125462684), (181, 111599404), (322, 62731342), (362, 55799702), (644, 31365671), (724, 27899851), (1267, 15942772), (2534, 7971386), (4163, 4852148), (5068, 3985693), (8326, 2426074), (16652, 1213037), (29141, 693164), (58282, 346582), (116564, 173291)]