19982290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{883}}^1$

素因数の和:994

約数の個数: 32

約数和(自身を含む): 37679616

約数和(自身を除く): 17697326

約数列:

[1, 2, 5, 10, 31, 62, 73, 146, 155, 310, 365, 730, 883, 1766, 2263, 4415, 4526, 8830, 11315, 22630, 27373, 54746, 64459, 128918, 136865, 273730, 322295, 644590, 1998229, 3996458, 9991145, 19982290]

約数ペア:

[(1, 19982290), (2, 9991145), (5, 3996458), (10, 1998229), (31, 644590), (62, 322295), (73, 273730), (146, 136865), (155, 128918), (310, 64459), (365, 54746), (730, 27373), (883, 22630), (1766, 11315), (2263, 8830), (4415, 4526)]