20305360

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4789}}^1$

素因数の和:4855

約数の個数: 40

約数和(自身を含む): 48110760

約数和(自身を除く): 27805400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 4789, 9578, 19156, 23945, 38312, 47890, 76624, 95780, 191560, 253817, 383120, 507634, 1015268, 1269085, 2030536, 2538170, 4061072, 5076340, 10152680, 20305360]

約数ペア:

[(1, 20305360), (2, 10152680), (4, 5076340), (5, 4061072), (8, 2538170), (10, 2030536), (16, 1269085), (20, 1015268), (40, 507634), (53, 383120), (80, 253817), (106, 191560), (212, 95780), (265, 76624), (424, 47890), (530, 38312), (848, 23945), (1060, 19156), (2120, 9578), (4240, 4789)]