20319056

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{751}}^1$

素因数の和:867

約数の個数: 40

約数和(自身を含む): 41961600

約数和(自身を除く): 21642544

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 89, 152, 178, 304, 356, 712, 751, 1424, 1502, 1691, 3004, 3382, 6008, 6764, 12016, 13528, 14269, 27056, 28538, 57076, 66839, 114152, 133678, 228304, 267356, 534712, 1069424, 1269941, 2539882, 5079764, 10159528, 20319056]

約数ペア:

[(1, 20319056), (2, 10159528), (4, 5079764), (8, 2539882), (16, 1269941), (19, 1069424), (38, 534712), (76, 267356), (89, 228304), (152, 133678), (178, 114152), (304, 66839), (356, 57076), (712, 28538), (751, 27056), (1424, 14269), (1502, 13528), (1691, 12016), (3004, 6764), (3382, 6008)]