20176040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:402

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 27724120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 307, 310, 424, 530, 614, 620, 1060, 1228, 1240, 1535, 1643, 2120, 2456, 3070, 3286, 6140, 6572, 8215, 9517, 12280, 13144, 16271, 16430, 19034, 32542, 32860, 38068, 47585, 65084, 65720, 76136, 81355, 95170, 130168, 162710, 190340, 325420, 380680, 504401, 650840, 1008802, 2017604, 2522005, 4035208, 5044010, 10088020, 20176040]

約数ペア:

[(1, 20176040), (2, 10088020), (4, 5044010), (5, 4035208), (8, 2522005), (10, 2017604), (20, 1008802), (31, 650840), (40, 504401), (53, 380680), (62, 325420), (106, 190340), (124, 162710), (155, 130168), (212, 95170), (248, 81355), (265, 76136), (307, 65720), (310, 65084), (424, 47585), (530, 38068), (614, 32860), (620, 32542), (1060, 19034), (1228, 16430), (1240, 16271), (1535, 13144), (1643, 12280), (2120, 9517), (2456, 8215), (3070, 6572), (3286, 6140)]