20181272960

素因数分解:

$2^7\times 5^1\times {\mathrm{523}}^1\times {\mathrm{60293}}^1$

素因数の和:60835

約数の個数: 64

約数和(自身を含む): 48338905680

約数和(自身を除く): 28157632720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 523, 640, 1046, 2092, 2615, 4184, 5230, 8368, 10460, 16736, 20920, 33472, 41840, 60293, 66944, 83680, 120586, 167360, 241172, 301465, 334720, 482344, 602930, 964688, 1205860, 1929376, 2411720, 3858752, 4823440, 7717504, 9646880, 19293760, 31533239, 38587520, 63066478, 126132956, 157666195, 252265912, 315332390, 504531824, 630664780, 1009063648, 1261329560, 2018127296, 2522659120, 4036254592, 5045318240, 10090636480, 20181272960]

約数ペア:

[(1, 20181272960), (2, 10090636480), (4, 5045318240), (5, 4036254592), (8, 2522659120), (10, 2018127296), (16, 1261329560), (20, 1009063648), (32, 630664780), (40, 504531824), (64, 315332390), (80, 252265912), (128, 157666195), (160, 126132956), (320, 63066478), (523, 38587520), (640, 31533239), (1046, 19293760), (2092, 9646880), (2615, 7717504), (4184, 4823440), (5230, 3858752), (8368, 2411720), (10460, 1929376), (16736, 1205860), (20920, 964688), (33472, 602930), (41840, 482344), (60293, 334720), (66944, 301465), (83680, 241172), (120586, 167360)]