18016270

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{653}}^1$

素因数の和:780

約数の個数: 32

約数和(自身を含む): 33903360

約数和(自身を除く): 15887090

約数列:

[1, 2, 5, 10, 31, 62, 89, 155, 178, 310, 445, 653, 890, 1306, 2759, 3265, 5518, 6530, 13795, 20243, 27590, 40486, 58117, 101215, 116234, 202430, 290585, 581170, 1801627, 3603254, 9008135, 18016270]

約数ペア:

[(1, 18016270), (2, 9008135), (5, 3603254), (10, 1801627), (31, 581170), (62, 290585), (89, 202430), (155, 116234), (178, 101215), (310, 58117), (445, 40486), (653, 27590), (890, 20243), (1306, 13795), (2759, 6530), (3265, 5518)]