19812568

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 21659432

約数列:

[1, 2, 4, 8, 23, 29, 46, 47, 58, 79, 92, 94, 116, 158, 184, 188, 232, 316, 376, 632, 667, 1081, 1334, 1363, 1817, 2162, 2291, 2668, 2726, 3634, 3713, 4324, 4582, 5336, 5452, 7268, 7426, 8648, 9164, 10904, 14536, 14852, 18328, 29704, 31349, 52693, 62698, 85399, 105386, 107677, 125396, 170798, 210772, 215354, 250792, 341596, 421544, 430708, 683192, 861416, 2476571, 4953142, 9906284, 19812568]

約数ペア:

[(1, 19812568), (2, 9906284), (4, 4953142), (8, 2476571), (23, 861416), (29, 683192), (46, 430708), (47, 421544), (58, 341596), (79, 250792), (92, 215354), (94, 210772), (116, 170798), (158, 125396), (184, 107677), (188, 105386), (232, 85399), (316, 62698), (376, 52693), (632, 31349), (667, 29704), (1081, 18328), (1334, 14852), (1363, 14536), (1817, 10904), (2162, 9164), (2291, 8648), (2668, 7426), (2726, 7268), (3634, 5452), (3713, 5336), (4324, 4582)]