18225340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^2$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 45934560

約数和(自身を除く): 27709220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 67, 70, 116, 134, 140, 145, 203, 268, 290, 335, 406, 469, 580, 670, 812, 938, 1015, 1340, 1876, 1943, 2030, 2345, 3886, 4060, 4489, 4690, 7772, 8978, 9380, 9715, 13601, 17956, 19430, 22445, 27202, 31423, 38860, 44890, 54404, 62846, 68005, 89780, 125692, 130181, 136010, 157115, 260362, 272020, 314230, 520724, 628460, 650905, 911267, 1301810, 1822534, 2603620, 3645068, 4556335, 9112670, 18225340]

約数ペア:

[(1, 18225340), (2, 9112670), (4, 4556335), (5, 3645068), (7, 2603620), (10, 1822534), (14, 1301810), (20, 911267), (28, 650905), (29, 628460), (35, 520724), (58, 314230), (67, 272020), (70, 260362), (116, 157115), (134, 136010), (140, 130181), (145, 125692), (203, 89780), (268, 68005), (290, 62846), (335, 54404), (406, 44890), (469, 38860), (580, 31423), (670, 27202), (812, 22445), (938, 19430), (1015, 17956), (1340, 13601), (1876, 9715), (1943, 9380), (2030, 8978), (2345, 7772), (3886, 4690), (4060, 4489)]