81781730

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{1567}}^1$

素因数の和:1898

約数の個数: 32

約数和(自身を含む): 156473856

約数和(自身を除く): 74692126

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 307, 614, 1535, 1567, 3070, 3134, 5219, 7835, 10438, 15670, 26095, 26639, 52190, 53278, 133195, 266390, 481069, 962138, 2405345, 4810690, 8178173, 16356346, 40890865, 81781730]

約数ペア:

[(1, 81781730), (2, 40890865), (5, 16356346), (10, 8178173), (17, 4810690), (34, 2405345), (85, 962138), (170, 481069), (307, 266390), (614, 133195), (1535, 53278), (1567, 52190), (3070, 26639), (3134, 26095), (5219, 15670), (7835, 10438)]