20165080544

素因数分解:

$2^5\times 7^2\times {\mathrm{641}}^1\times {\mathrm{20063}}^1$

素因数の和:20728

約数の個数: 72

約数和(自身を含む): 46255987008

約数和(自身を除く): 26090906464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 641, 784, 1282, 1568, 2564, 4487, 5128, 8974, 10256, 17948, 20063, 20512, 31409, 35896, 40126, 62818, 71792, 80252, 125636, 140441, 143584, 160504, 251272, 280882, 321008, 502544, 561764, 642016, 983087, 1005088, 1123528, 1966174, 2247056, 3932348, 4494112, 7864696, 12860383, 15729392, 25720766, 31458784, 51441532, 90022681, 102883064, 180045362, 205766128, 360090724, 411532256, 630158767, 720181448, 1260317534, 1440362896, 2520635068, 2880725792, 5041270136, 10082540272, 20165080544]

約数ペア:

[(1, 20165080544), (2, 10082540272), (4, 5041270136), (7, 2880725792), (8, 2520635068), (14, 1440362896), (16, 1260317534), (28, 720181448), (32, 630158767), (49, 411532256), (56, 360090724), (98, 205766128), (112, 180045362), (196, 102883064), (224, 90022681), (392, 51441532), (641, 31458784), (784, 25720766), (1282, 15729392), (1568, 12860383), (2564, 7864696), (4487, 4494112), (5128, 3932348), (8974, 2247056), (10256, 1966174), (17948, 1123528), (20063, 1005088), (20512, 983087), (31409, 642016), (35896, 561764), (40126, 502544), (62818, 321008), (71792, 280882), (80252, 251272), (125636, 160504), (140441, 143584)]