20780376

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:456

約数の個数: 64

約数和(自身を含む): 55200000

約数和(自身を除く): 34419624

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 199, 228, 229, 398, 456, 458, 597, 687, 796, 916, 1194, 1374, 1592, 1832, 2388, 2748, 3781, 4351, 4776, 5496, 7562, 8702, 11343, 13053, 15124, 17404, 22686, 26106, 30248, 34808, 45372, 45571, 52212, 90744, 91142, 104424, 136713, 182284, 273426, 364568, 546852, 865849, 1093704, 1731698, 2597547, 3463396, 5195094, 6926792, 10390188, 20780376]

約数ペア:

[(1, 20780376), (2, 10390188), (3, 6926792), (4, 5195094), (6, 3463396), (8, 2597547), (12, 1731698), (19, 1093704), (24, 865849), (38, 546852), (57, 364568), (76, 273426), (114, 182284), (152, 136713), (199, 104424), (228, 91142), (229, 90744), (398, 52212), (456, 45571), (458, 45372), (597, 34808), (687, 30248), (796, 26106), (916, 22686), (1194, 17404), (1374, 15124), (1592, 13053), (1832, 11343), (2388, 8702), (2748, 7562), (3781, 5496), (4351, 4776)]