81990388

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 156643200

約数和(自身を除く): 74652812

約数列:

[1, 2, 4, 17, 34, 68, 73, 83, 146, 166, 199, 292, 332, 398, 796, 1241, 1411, 2482, 2822, 3383, 4964, 5644, 6059, 6766, 12118, 13532, 14527, 16517, 24236, 29054, 33034, 58108, 66068, 103003, 206006, 246959, 280789, 412012, 493918, 561578, 987836, 1123156, 1205741, 2411482, 4822964, 20497597, 40995194, 81990388]

約数ペア:

[(1, 81990388), (2, 40995194), (4, 20497597), (17, 4822964), (34, 2411482), (68, 1205741), (73, 1123156), (83, 987836), (146, 561578), (166, 493918), (199, 412012), (292, 280789), (332, 246959), (398, 206006), (796, 103003), (1241, 66068), (1411, 58108), (2482, 33034), (2822, 29054), (3383, 24236), (4964, 16517), (5644, 14527), (6059, 13532), (6766, 12118)]